38990610 has 24 divisors (see below), whose sum is σ = 101375820. Its totient is φ = 10397472.

The previous prime is 38990599. The next prime is 38990617. The reversal of 38990610 is 1609983.

38990610 is a `hidden beast` number, since 38 + 9 + 9 + 0 + 610 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38526849 + 463761 = 6207^2 + 681^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38990617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216525 + ... + 216704.

Almost surely, 2^38990610 is an apocalyptic number.

38990610 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38990610 is an abundant number, since it is smaller than the sum of its proper divisors (62385210).

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

38990610 is a wasteful number, since it uses less digits than its factorization.

38990610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433242 (or 433239 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 38990610 is about 6244.2461514582. The cubic root of 38990610 is about 339.0939254711.

The spelling of 38990610 in words is "thirty-eight million, nine hundred ninety thousand, six hundred ten".