38390590 has 32 divisors (see below), whose sum is σ = 83623104. Its totient is φ = 12387840.

The previous prime is 38390579. The next prime is 38390591. The reversal of 38390590 is 9509383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38390591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14941 + ... + 17320.

It is an arithmetic number, because the mean of its divisors is an integer number (2613222).

Almost surely, 2^38390590 is an apocalyptic number.

38390590 is an abundant number, since it is smaller than the sum of its proper divisors (45232514).

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

38390590 is a wasteful number, since it uses less digits than its factorization.

38390590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32292.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 38390590 is about 6196.0140413011. The cubic root of 38390590 is about 337.3455058784.

The spelling of 38390590 in words is "thirty-eight million, three hundred ninety thousand, five hundred ninety".