38651233940 has 48 divisors (see below), whose sum is σ = 90047280960. Its totient is φ = 13816769280.

The previous prime is 38651233919. The next prime is 38651233979. The reversal of 38651233940 is 4933215683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 38651233891 and 38651233900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1475897 + ... + 1501856.

It is an arithmetic number, because the mean of its divisors is an integer number (1875985020).

Almost surely, 2^38651233940 is an apocalyptic number.

It is an amenable number.

38651233940 is an abundant number, since it is smaller than the sum of its proper divisors (51396047020).

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

38651233940 is a wasteful number, since it uses less digits than its factorization.

38651233940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977832 (or 2977830 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 38651233940 in words is "thirty-eight billion, six hundred fifty-one million, two hundred thirty-three thousand, nine hundred forty".