38857090 has 16 divisors (see below), whose sum is σ = 73624320. Its totient is φ = 14724720.

The previous prime is 38857073. The next prime is 38857099. The reversal of 38857090 is 9075883.

It is not an unprimeable number, because it can be changed into a prime (38857099) 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, 102066 + ... + 102445.

It is an arithmetic number, because the mean of its divisors is an integer number (4601520).

Almost surely, 2^38857090 is an apocalyptic number.

38857090 is a deficient number, since it is larger than the sum of its proper divisors (34767230).

38857090 is a wasteful number, since it uses less digits than its factorization.

38857090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204537.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 38857090 is about 6233.5455400598. The cubic root of 38857090 is about 338.7064167818.

The spelling of 38857090 in words is "thirty-eight million, eight hundred fifty-seven thousand, ninety".