388985156 has 24 divisors (see below), whose sum is σ = 782752320. Its totient is φ = 165683232.

The previous prime is 388985089. The next prime is 388985159. The reversal of 388985156 is 651589883.

It is a junction number, because it is equal to n+sod(n) for n = 388985098 and 388985107.

It is not an unprimeable number, because it can be changed into a prime (388985159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38051 + ... + 47178.

It is an arithmetic number, because the mean of its divisors is an integer number (32614680).

Almost surely, 2^388985156 is an apocalyptic number.

It is an amenable number.

388985156 is an abundant number, since it is smaller than the sum of its proper divisors (393767164).

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

388985156 is a wasteful number, since it uses less digits than its factorization.

388985156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85403 (or 85401 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 53.

The square root of 388985156 is about 19722.7066093881. The cubic root of 388985156 is about 729.9800807725.

The spelling of 388985156 in words is "three hundred eighty-eight million, nine hundred eighty-five thousand, one hundred fifty-six".