694483440 has 160 divisors (see below), whose sum is σ = 2590072320. Its totient is φ = 150377472.

The previous prime is 694483429. The next prime is 694483441. The reversal of 694483440 is 44384496.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 694483392 and 694483401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694483441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21042 + ... + 42798.

It is an arithmetic number, because the mean of its divisors is an integer number (16187952).

Almost surely, 2^694483440 is an apocalyptic number.

694483440 is a gapful number since it is divisible by the number (60) 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 694483440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295036160).

694483440 is an abundant number, since it is smaller than the sum of its proper divisors (1895588880).

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

694483440 is a wasteful number, since it uses less digits than its factorization.

694483440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21799 (or 21793 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 694483440 is about 26353.0537129950. The cubic root of 694483440 is about 885.5653829264.

The spelling of 694483440 in words is "six hundred ninety-four million, four hundred eighty-three thousand, four hundred forty".