38744904372 has 12 divisors (see below), whose sum is σ = 90404776896. Its totient is φ = 12914968120.

The previous prime is 38744904361. The next prime is 38744904379. The reversal of 38744904372 is 27340944783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×38744904372² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38744904379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614371004 + ... + 1614371027.

It is an arithmetic number, because the mean of its divisors is an integer number (7533731408).

Almost surely, 2^38744904372 is an apocalyptic number.

It is an amenable number.

38744904372 is an abundant number, since it is smaller than the sum of its proper divisors (51659872524).

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

38744904372 is a wasteful number, since it uses less digits than its factorization.

38744904372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228742038 (or 3228742036 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 38744904372 in words is "thirty-eight billion, seven hundred forty-four million, nine hundred four thousand, three hundred seventy-two".