930638428 has 6 divisors (see below), whose sum is σ = 1628617256. Its totient is φ = 465319212.

The previous prime is 930638353. The next prime is 930638431. The reversal of 930638428 is 824836039.

It is a super-2 number, since 2×930638428² = 1732175767340622368, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 116329800 + ... + 116329807.

Almost surely, 2^930638428 is an apocalyptic number.

It is an amenable number.

930638428 is a deficient number, since it is larger than the sum of its proper divisors (697978828).

930638428 is a wasteful number, since it uses less digits than its factorization.

930638428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232659611 (or 232659609 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 930638428 is about 30506.3670075609. The cubic root of 930638428 is about 976.3233148484.

The spelling of 930638428 in words is "nine hundred thirty million, six hundred thirty-eight thousand, four hundred twenty-eight".