694405056 has 56 divisors (see below), whose sum is σ = 1857969360. Its totient is φ = 228861952.

The previous prime is 694405051. The next prime is 694405079. The reversal of 694405056 is 650504496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694405051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231 + ... + 37406.

Almost surely, 2^694405056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694405056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928984680).

694405056 is an abundant number, since it is smaller than the sum of its proper divisors (1163564304).

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

694405056 is a wasteful number, since it uses less digits than its factorization.

694405056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40741 (or 40731 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 694405056 is about 26351.5664809514. The cubic root of 694405056 is about 885.5320647484.

The spelling of 694405056 in words is "six hundred ninety-four million, four hundred five thousand, fifty-six".