634497072 has 40 divisors (see below), whose sum is σ = 1788129600. Its totient is φ = 192271680.

The previous prime is 634497047. The next prime is 634497107. The reversal of 634497072 is 270794436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600322 + ... + 601377.

It is an arithmetic number, because the mean of its divisors is an integer number (44703240).

Almost surely, 2^634497072 is an apocalyptic number.

It is an amenable number.

634497072 is an abundant number, since it is smaller than the sum of its proper divisors (1153632528).

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

634497072 is a wasteful number, since it uses less digits than its factorization.

634497072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201721 (or 1201715 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 634497072 is about 25189.2253155987. The cubic root of 634497072 is about 859.2968256065.

The spelling of 634497072 in words is "six hundred thirty-four million, four hundred ninety-seven thousand, seventy-two".