38663625 has 128 divisors (see below), whose sum is σ = 87220224. Its totient is φ = 14688000.

The previous prime is 38663617. The next prime is 38663663. The reversal of 38663625 is 52636683.

It is a happy number.

It is not a de Polignac number, because 38663625 - 2³ = 38663617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 375324 + ... + 375426.

It is an arithmetic number, because the mean of its divisors is an integer number (681408).

Almost surely, 2^38663625 is an apocalyptic number.

38663625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38663625 is an abundant number, since it is smaller than the sum of its proper divisors (48556599).

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

38663625 is a wasteful number, since it uses less digits than its factorization.

38663625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 142 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 38663625 is about 6218.0081215772. The cubic root of 38663625 is about 338.1433544543.

The spelling of 38663625 in words is "thirty-eight million, six hundred sixty-three thousand, six hundred twenty-five".