38380490 has 16 divisors (see below), whose sum is σ = 69178752. Its totient is φ = 15331344.

The previous prime is 38380487. The next prime is 38380499. The reversal of 38380490 is 9408383.

It is a self number, because there is not a number n which added to its sum of digits gives 38380490.

It is not an unprimeable number, because it can be changed into a prime (38380499) 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, 6707 + ... + 11033.

It is an arithmetic number, because the mean of its divisors is an integer number (4323672).

Almost surely, 2^38380490 is an apocalyptic number.

38380490 is a deficient number, since it is larger than the sum of its proper divisors (30798262).

38380490 is a wasteful number, since it uses less digits than its factorization.

38380490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38380490 is about 6195.1989475722. The cubic root of 38380490 is about 337.3159197355.

The spelling of 38380490 in words is "thirty-eight million, three hundred eighty thousand, four hundred ninety".