388739055 has 16 divisors (see below), whose sum is σ = 643430880. Its totient is φ = 200178048.

The previous prime is 388739033. The next prime is 388739083. The reversal of 388739055 is 550937883.

It is a happy number.

It is not a de Polignac number, because 388739055 - 2⁶ = 388738991 is a prime.

It is a super-2 number, since 2×388739055² = 302236105764586050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388738995 and 388739013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446392 + ... + 447261.

It is an arithmetic number, because the mean of its divisors is an integer number (40214430).

Almost surely, 2^388739055 is an apocalyptic number.

388739055 is a deficient number, since it is larger than the sum of its proper divisors (254691825).

388739055 is a wasteful number, since it uses less digits than its factorization.

388739055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893690.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 388739055 is about 19716.4665952092. The cubic root of 388739055 is about 729.8261016941.

The spelling of 388739055 in words is "three hundred eighty-eight million, seven hundred thirty-nine thousand, fifty-five".