38884644540 has 120 divisors (see below), whose sum is σ = 139408692192. Its totient is φ = 8887916160.

The previous prime is 38884644517. The next prime is 38884644571. The reversal of 38884644540 is 4544648883.

It is a happy number.

38884644540 is a `hidden beast` number, since 3 + 88 + 84 + 6 + 445 + 40 = 666.

38884644540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1703151 + ... + 1725830.

Almost surely, 2^38884644540 is an apocalyptic number.

38884644540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38884644540 is an abundant number, since it is smaller than the sum of its proper divisors (100524047652).

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

38884644540 is a wasteful number, since it uses less digits than its factorization.

38884644540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429009 (or 3428998 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 54.

The spelling of 38884644540 in words is "thirty-eight billion, eight hundred eighty-four million, six hundred forty-four thousand, five hundred forty".