638096522 has 24 divisors (see below), whose sum is σ = 1139314176. Its totient is φ = 267108408.

The previous prime is 638096507. The next prime is 638096549. The reversal of 638096522 is 225690836.

It is a self number, because there is not a number n which added to its sum of digits gives 638096522.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71498 + ... + 79925.

It is an arithmetic number, because the mean of its divisors is an integer number (47471424).

Almost surely, 2^638096522 is an apocalyptic number.

638096522 is a deficient number, since it is larger than the sum of its proper divisors (501217654).

638096522 is a wasteful number, since it uses less digits than its factorization.

638096522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151482 (or 151475 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 638096522 is about 25260.5724796569. The cubic root of 638096522 is about 860.9186694720.

The spelling of 638096522 in words is "six hundred thirty-eight million, ninety-six thousand, five hundred twenty-two".