38724900 has 36 divisors (see below), whose sum is σ = 112044912. Its totient is φ = 10326560.

The previous prime is 38724899. The next prime is 38724901. The reversal of 38724900 is 942783.

38724900 = T₁₆₉ + T₁₇₀ + ... + T₆₁₈.

It is an interprime number because it is at equal distance from previous prime (38724899) and next prime (38724901).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38724901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64242 + ... + 64841.

Almost surely, 2^38724900 is an apocalyptic number.

38724900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38724900 is an abundant number, since it is smaller than the sum of its proper divisors (73320012).

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

38724900 is a wasteful number, since it uses less digits than its factorization.

38724900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129100 (or 129093 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 38724900 is about 6222.9333918981. The cubic root of 38724900 is about 338.3218926193.

The spelling of 38724900 in words is "thirty-eight million, seven hundred twenty-four thousand, nine hundred".