38970290 has 16 divisors (see below), whose sum is σ = 74273112. Its totient is φ = 14671104.

The previous prime is 38970289. The next prime is 38970293. The reversal of 38970290 is 9207983.

It can be written as a sum of positive squares in 4 ways, for example, as 38551681 + 418609 = 6209^2 + 647^2 .

It is not an unprimeable number, because it can be changed into a prime (38970293) 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, 114449 + ... + 114788.

Almost surely, 2^38970290 is an apocalyptic number.

38970290 is a deficient number, since it is larger than the sum of its proper divisors (35302822).

38970290 is a wasteful number, since it uses less digits than its factorization.

38970290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229261.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 38970290 is about 6242.6188414799. The cubic root of 38970290 is about 339.0350088423.

The spelling of 38970290 in words is "thirty-eight million, nine hundred seventy thousand, two hundred ninety".