1693734980 has 72 divisors (see below), whose sum is σ = 4157669376. Its totient is φ = 577886400.

The previous prime is 1693734971. The next prime is 1693734983. The reversal of 1693734980 is 894373961.

It is not an unprimeable number, because it can be changed into a prime (1693734983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202685 + ... + 210875.

It is an arithmetic number, because the mean of its divisors is an integer number (57745408).

Almost surely, 2^1693734980 is an apocalyptic number.

1693734980 is a gapful number since it is divisible by the number (10) 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 1693734980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2078834688).

1693734980 is an abundant number, since it is smaller than the sum of its proper divisors (2463934396).

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

1693734980 is a wasteful number, since it uses less digits than its factorization.

1693734980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425 (or 8416 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1693734980 is about 41155.0116024768. The cubic root of 1693734980 is about 1192.0152703252.

The spelling of 1693734980 in words is "one billion, six hundred ninety-three million, seven hundred thirty-four thousand, nine hundred eighty".