388158552 has 48 divisors (see below), whose sum is σ = 1113105240. Its totient is φ = 121774848.

The previous prime is 388158541. The next prime is 388158553. The reversal of 388158552 is 255851883.

388158552 is a `hidden beast` number, since 3 + 88 + 15 + 8 + 552 = 666.

It is a super-2 number, since 2×388158552² = 301334122981473408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388158498 and 388158507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388158553) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 157338 + ... + 159785.

Almost surely, 2^388158552 is an apocalyptic number.

It is an amenable number.

388158552 is an abundant number, since it is smaller than the sum of its proper divisors (724946688).

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

388158552 is a wasteful number, since it uses less digits than its factorization.

388158552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317152 (or 317145 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 388158552 is about 19701.7398216503. The cubic root of 388158552 is about 729.4626382535.

The spelling of 388158552 in words is "three hundred eighty-eight million, one hundred fifty-eight thousand, five hundred fifty-two".