38719912 has 64 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 14965440.

The previous prime is 38719907. The next prime is 38719913. The reversal of 38719912 is 21991783.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38719913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147093 + ... + 147355.

It is an arithmetic number, because the mean of its divisors is an integer number (1425600).

Almost surely, 2^38719912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38719912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45619200).

38719912 is an abundant number, since it is smaller than the sum of its proper divisors (52518488).

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

38719912 is a wasteful number, since it uses less digits than its factorization.

38719912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 522 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 38719912 is about 6222.5326033698. The cubic root of 38719912 is about 338.3073660307.

The spelling of 38719912 in words is "thirty-eight million, seven hundred nineteen thousand, nine hundred twelve".