38187828 has 48 divisors (see below), whose sum is σ = 113151360. Its totient is φ = 10910592.

The previous prime is 38187817. The next prime is 38187839. The reversal of 38187828 is 82878183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38187817) and next prime (38187839).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24501 + ... + 26012.

It is an arithmetic number, because the mean of its divisors is an integer number (2357320).

Almost surely, 2^38187828 is an apocalyptic number.

It is an amenable number.

38187828 is an abundant number, since it is smaller than the sum of its proper divisors (74963532).

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

38187828 is a wasteful number, since it uses less digits than its factorization.

38187828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50533 (or 50525 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 38187828 is about 6179.6300860165. The cubic root of 38187828 is about 336.7505543118.

It can be divided in two parts, 381 and 87828, that added together give a square (88209 = 297²).

The spelling of 38187828 in words is "thirty-eight million, one hundred eighty-seven thousand, eight hundred twenty-eight".