1138908522 has 16 divisors (see below), whose sum is σ = 2300370912. Its totient is φ = 375877200.

The previous prime is 1138908521. The next prime is 1138908539. The reversal of 1138908522 is 2258098311.

It is a super-2 number, since 2×1138908522² = 2594225242968448968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1138908521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939088 + ... + 940299.

It is an arithmetic number, because the mean of its divisors is an integer number (143773182).

Almost surely, 2^1138908522 is an apocalyptic number.

1138908522 is an abundant number, since it is smaller than the sum of its proper divisors (1161462390).

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

1138908522 is a wasteful number, since it uses less digits than its factorization.

1138908522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879493.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1138908522 is about 33747.7187673478. The cubic root of 1138908522 is about 1044.3104268371.

The spelling of 1138908522 in words is "one billion, one hundred thirty-eight million, nine hundred eight thousand, five hundred twenty-two".