634598428 has 24 divisors (see below), whose sum is σ = 1159764480. Its totient is φ = 303259440.

The previous prime is 634598411. The next prime is 634598431. The reversal of 634598428 is 824895436.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 171033 + ... + 174703.

It is an arithmetic number, because the mean of its divisors is an integer number (48323520).

Almost surely, 2^634598428 is an apocalyptic number.

It is an amenable number.

634598428 is a deficient number, since it is larger than the sum of its proper divisors (525166052).

634598428 is a wasteful number, since it uses less digits than its factorization.

634598428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577 (or 5575 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 634598428 is about 25191.2371272234. The cubic root of 634598428 is about 859.3425785111.

The spelling of 634598428 in words is "six hundred thirty-four million, five hundred ninety-eight thousand, four hundred twenty-eight".