634674042 has 40 divisors (see below), whose sum is σ = 1425283200. Its totient is φ = 211090536.

The previous prime is 634674017. The next prime is 634674101. The reversal of 634674042 is 240476436.

It is a super-2 number, since 2×634674042² = 805622279177235528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634673988 and 634674006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73509 + ... + 81687.

It is an arithmetic number, because the mean of its divisors is an integer number (35632080).

Almost surely, 2^634674042 is an apocalyptic number.

634674042 is an abundant number, since it is smaller than the sum of its proper divisors (790609158).

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

634674042 is a wasteful number, since it uses less digits than its factorization.

634674042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672 (or 8663 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 634674042 is about 25192.7378821755. The cubic root of 634674042 is about 859.3767080993.

The spelling of 634674042 in words is "six hundred thirty-four million, six hundred seventy-four thousand, forty-two".