38547492420 has 48 divisors (see below), whose sum is σ = 108492249600. Its totient is φ = 10226067456.

The previous prime is 38547492409. The next prime is 38547492421. The reversal of 38547492420 is 2429474583.

It is a self number, because there is not a number n which added to its sum of digits gives 38547492420.

It is not an unprimeable number, because it can be changed into a prime (38547492421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652820 + ... + 1675979.

It is an arithmetic number, because the mean of its divisors is an integer number (2260255200).

Almost surely, 2^38547492420 is an apocalyptic number.

38547492420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38547492420 is an abundant number, since it is smaller than the sum of its proper divisors (69944757180).

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

38547492420 is a wasteful number, since it uses less digits than its factorization.

38547492420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329004 (or 3329002 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 38547492420 in words is "thirty-eight billion, five hundred forty-seven million, four hundred ninety-two thousand, four hundred twenty".