38665530 has 48 divisors (see below), whose sum is σ = 104906880. Its totient is φ = 9861984.

The previous prime is 38665511. The next prime is 38665541. The reversal of 38665530 is 3556683.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7270 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (2185560).

Almost surely, 2^38665530 is an apocalyptic number.

38665530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38665530 is an abundant number, since it is smaller than the sum of its proper divisors (66241350).

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

38665530 is a wasteful number, since it uses less digits than its factorization.

38665530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18715 (or 18712 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 38665530 is about 6218.1613037939. The cubic root of 38665530 is about 338.1489079301.

The spelling of 38665530 in words is "thirty-eight million, six hundred sixty-five thousand, five hundred thirty".