38238885 has 40 divisors (see below), whose sum is σ = 68999040. Its totient is φ = 20259936.

The previous prime is 38238881. The next prime is 38238919. The reversal of 38238885 is 58883283.

It is not a de Polignac number, because 38238885 - 2² = 38238881 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38238885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38238881) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106336 + ... + 106694.

It is an arithmetic number, because the mean of its divisors is an integer number (1724976).

Almost surely, 2^38238885 is an apocalyptic number.

It is an amenable number.

38238885 is a deficient number, since it is larger than the sum of its proper divisors (30760155).

38238885 is a wasteful number, since it uses less digits than its factorization.

38238885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 630 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 38238885 is about 6183.7597786460. The cubic root of 38238885 is about 336.9005656034.

The spelling of 38238885 in words is "thirty-eight million, two hundred thirty-eight thousand, eight hundred eighty-five".