39890522 has 16 divisors (see below), whose sum is σ = 68521920. Its totient is φ = 17061408.

The previous prime is 39890509. The next prime is 39890531. The reversal of 39890522 is 22509893.

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, 5054 + ... + 10262.

It is an arithmetic number, because the mean of its divisors is an integer number (4282620).

Almost surely, 2^39890522 is an apocalyptic number.

39890522 is a deficient number, since it is larger than the sum of its proper divisors (28631398).

39890522 is a wasteful number, since it uses less digits than its factorization.

39890522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 39890522 is about 6315.8943943039. The cubic root of 39890522 is about 341.6828963406.

The spelling of 39890522 in words is "thirty-nine million, eight hundred ninety thousand, five hundred twenty-two".