734634440 has 32 divisors (see below), whose sum is σ = 1688100480. Its totient is φ = 287600832.

The previous prime is 734634401. The next prime is 734634443. The reversal of 734634440 is 44436437.

It is a happy number.

It is a super-2 number, since 2×734634440² = 1079375520868227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 734634440.

It is not an unprimeable number, because it can be changed into a prime (734634443) 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, 193502 + ... + 197261.

It is an arithmetic number, because the mean of its divisors is an integer number (52753140).

Almost surely, 2^734634440 is an apocalyptic number.

It is an amenable number.

734634440 is an abundant number, since it is smaller than the sum of its proper divisors (953466040).

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

734634440 is a wasteful number, since it uses less digits than its factorization.

734634440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390821 (or 390817 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 35.

The square root of 734634440 is about 27104.1406430826. The cubic root of 734634440 is about 902.3127513657.

The spelling of 734634440 in words is "seven hundred thirty-four million, six hundred thirty-four thousand, four hundred forty".