38949764 has 48 divisors (see below), whose sum is σ = 83951616. Its totient is φ = 15444000.

The previous prime is 38949751. The next prime is 38949767. The reversal of 38949764 is 46794983.

Its product of digits (1306368) is a multiple of the sum of its prime factors (2016).

It is not an unprimeable number, because it can be changed into a prime (38949767) 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, 18989 + ... + 20939.

It is an arithmetic number, because the mean of its divisors is an integer number (1748992).

Almost surely, 2^38949764 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 38949764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41975808).

38949764 is an abundant number, since it is smaller than the sum of its proper divisors (45001852).

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

38949764 is a wasteful number, since it uses less digits than its factorization.

38949764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2014 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 38949764 is about 6240.9746033773. The cubic root of 38949764 is about 338.9754741323.

The spelling of 38949764 in words is "thirty-eight million, nine hundred forty-nine thousand, seven hundred sixty-four".