38652990 has 32 divisors (see below), whose sum is σ = 92982816. Its totient is φ = 10283520.

The previous prime is 38652961. The next prime is 38652997. The reversal of 38652990 is 9925683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38652997) 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, 14394 + ... + 16866.

It is an arithmetic number, because the mean of its divisors is an integer number (2905713).

Almost surely, 2^38652990 is an apocalyptic number.

38652990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38652990 is an abundant number, since it is smaller than the sum of its proper divisors (54329826).

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

38652990 is a wasteful number, since it uses less digits than its factorization.

38652990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 38652990 is about 6217.1528853648. The cubic root of 38652990 is about 338.1123478398.

The spelling of 38652990 in words is "thirty-eight million, six hundred fifty-two thousand, nine hundred ninety".