38815712 has 24 divisors (see below), whose sum is σ = 82297656. Its totient is φ = 17914752.

The previous prime is 38815691. The next prime is 38815723. The reversal of 38815712 is 21751883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46238 + ... + 47069.

It is an arithmetic number, because the mean of its divisors is an integer number (3429069).

Almost surely, 2^38815712 is an apocalyptic number.

38815712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38815712 is an abundant number, since it is smaller than the sum of its proper divisors (43481944).

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

38815712 is a wasteful number, since it uses less digits than its factorization.

38815712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93330 (or 93322 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 38815712 is about 6230.2256780955. The cubic root of 38815712 is about 338.5861472522.

The spelling of 38815712 in words is "thirty-eight million, eight hundred fifteen thousand, seven hundred twelve".