38870090 has 16 divisors (see below), whose sum is σ = 79961472. Its totient is φ = 13326864.

The previous prime is 38870087. The next prime is 38870119. The reversal of 38870090 is 9007883.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 38870090.

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, 277574 + ... + 277713.

It is an arithmetic number, because the mean of its divisors is an integer number (4997592).

Almost surely, 2^38870090 is an apocalyptic number.

38870090 is an abundant number, since it is smaller than the sum of its proper divisors (41091382).

38870090 is a wasteful number, since it uses less digits than its factorization.

38870090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555301.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 38870090 is about 6234.5881981090. The cubic root of 38870090 is about 338.7441850284.

The spelling of 38870090 in words is "thirty-eight million, eight hundred seventy thousand, ninety".