388481420 has 24 divisors (see below), whose sum is σ = 818767824. Its totient is φ = 154829376.

The previous prime is 388481413. The next prime is 388481459. The reversal of 388481420 is 24184883.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29522 + ... + 40601.

It is an arithmetic number, because the mean of its divisors is an integer number (34115326).

Almost surely, 2^388481420 is an apocalyptic number.

It is an amenable number.

388481420 is an abundant number, since it is smaller than the sum of its proper divisors (430286404).

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

388481420 is a wasteful number, since it uses less digits than its factorization.

388481420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70409 (or 70407 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 388481420 is about 19709.9320140887. The cubic root of 388481420 is about 729.6648364451.

The spelling of 388481420 in words is "three hundred eighty-eight million, four hundred eighty-one thousand, four hundred twenty".