38700790 has 16 divisors (see below), whose sum is σ = 72064080. Its totient is φ = 14946400.

The previous prime is 38700763. The next prime is 38700793. The reversal of 38700790 is 9700783.

It is a super-2 number, since 2×38700790² = 2995502293248200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38700793) 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, 66436 + ... + 67015.

It is an arithmetic number, because the mean of its divisors is an integer number (4504005).

Almost surely, 2^38700790 is an apocalyptic number.

38700790 is a deficient number, since it is larger than the sum of its proper divisors (33363290).

38700790 is a wasteful number, since it uses less digits than its factorization.

38700790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133487.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 38700790 is about 6220.9959009792. The cubic root of 38700790 is about 338.2516653301.

The spelling of 38700790 in words is "thirty-eight million, seven hundred thousand, seven hundred ninety".