38403264720 has 80 divisors (see below), whose sum is σ = 119906700480. Its totient is φ = 10167186432.

The previous prime is 38403264709. The next prime is 38403264751. The reversal of 38403264720 is 2746230483.

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

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, 542229 + ... + 608948.

It is an arithmetic number, because the mean of its divisors is an integer number (1498833756).

Almost surely, 2^38403264720 is an apocalyptic number.

38403264720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38403264720 is an abundant number, since it is smaller than the sum of its proper divisors (81503435760).

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

38403264720 is a wasteful number, since it uses less digits than its factorization.

38403264720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151332 (or 1151326 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 38403264720 in words is "thirty-eight billion, four hundred three million, two hundred sixty-four thousand, seven hundred twenty".