38409732 has 36 divisors (see below), whose sum is σ = 102804156. Its totient is φ = 12049920.

The previous prime is 38409727. The next prime is 38409733. The reversal of 38409732 is 23790483.

It can be written as a sum of positive squares in 2 ways, for example, as 16451136 + 21958596 = 4056^2 + 4686^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38409733) 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, 30769 + ... + 31992.

It is an arithmetic number, because the mean of its divisors is an integer number (2855671).

Almost surely, 2^38409732 is an apocalyptic number.

It is an amenable number.

38409732 is an abundant number, since it is smaller than the sum of its proper divisors (64394424).

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

38409732 is a wasteful number, since it uses less digits than its factorization.

38409732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62788 (or 62783 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 38409732 is about 6197.5585515588. The cubic root of 38409732 is about 337.4015647088.

The spelling of 38409732 in words is "thirty-eight million, four hundred nine thousand, seven hundred thirty-two".