1694801412 has 72 divisors (see below), whose sum is σ = 4475966040. Its totient is φ = 540019200.

The previous prime is 1694801401. The next prime is 1694801419. The reversal of 1694801412 is 2141084961.

1694801412 is a `hidden beast` number, since 169 + 4 + 80 + 1 + 412 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 425019456 + 1269781956 = 20616^2 + 35634^2 .

It is a super-2 number, since 2×1694801412² = 5744703652234387488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1694801419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97408 + ... + 113480.

It is an arithmetic number, because the mean of its divisors is an integer number (62166195).

Almost surely, 2^1694801412 is an apocalyptic number.

1694801412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1694801412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2237983020).

1694801412 is an abundant number, since it is smaller than the sum of its proper divisors (2781164628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1694801412 is a wasteful number, since it uses less digits than its factorization.

1694801412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16213 (or 16208 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1694801412 is about 41167.9658472458. The cubic root of 1694801412 is about 1192.2653953526.

The spelling of 1694801412 in words is "one billion, six hundred ninety-four million, eight hundred one thousand, four hundred twelve".