38873571440 has 80 divisors (see below), whose sum is σ = 102884414976. Its totient is φ = 13521235200.

The previous prime is 38873571433. The next prime is 38873571467. The reversal of 38873571440 is 4417537883.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×38873571440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 940076 + ... + 980555.

Almost surely, 2^38873571440 is an apocalyptic number.

It is an amenable number.

38873571440 is an abundant number, since it is smaller than the sum of its proper divisors (64010843536).

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

38873571440 is a wasteful number, since it uses less digits than its factorization.

38873571440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920678 (or 1920672 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 38873571440 in words is "thirty-eight billion, eight hundred seventy-three million, five hundred seventy-one thousand, four hundred forty".