38539812 has 48 divisors (see below), whose sum is σ = 95864832. Its totient is φ = 12022560.

The previous prime is 38539777. The next prime is 38539817. The reversal of 38539812 is 21893583.

It is not an unprimeable number, because it can be changed into a prime (38539817) 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, 11487 + ... + 14457.

It is an arithmetic number, because the mean of its divisors is an integer number (1997184).

Almost surely, 2^38539812 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 38539812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47932416).

38539812 is an abundant number, since it is smaller than the sum of its proper divisors (57325020).

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

38539812 is a wasteful number, since it uses less digits than its factorization.

38539812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3046 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 38539812 is about 6208.0441364410. The cubic root of 38539812 is about 337.7820216104.

The spelling of 38539812 in words is "thirty-eight million, five hundred thirty-nine thousand, eight hundred twelve".