388054428 has 24 divisors (see below), whose sum is σ = 920305680. Its totient is φ = 127230720.

The previous prime is 388054379. The next prime is 388054453. The reversal of 388054428 is 824450883.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 388054428.

It is a congruent number.

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, 264333 + ... + 265796.

It is an arithmetic number, because the mean of its divisors is an integer number (38346070).

Almost surely, 2^388054428 is an apocalyptic number.

It is an amenable number.

388054428 is an abundant number, since it is smaller than the sum of its proper divisors (532251252).

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

388054428 is a wasteful number, since it uses less digits than its factorization.

388054428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530197 (or 530195 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 388054428 is about 19699.0971366710. The cubic root of 388054428 is about 729.3974060093.

The spelling of 388054428 in words is "three hundred eighty-eight million, fifty-four thousand, four hundred twenty-eight".