388908036 has 216 divisors, whose sum is σ = 1177379840. Its totient is φ = 107775360.

The previous prime is 388908007. The next prime is 388908049. The reversal of 388908036 is 630809883.

It is a junction number, because it is equal to n+sod(n) for n = 388907982 and 388908000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3062205 + ... + 3062331.

Almost surely, 2^388908036 is an apocalyptic number.

388908036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388908036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588689920).

388908036 is an abundant number, since it is smaller than the sum of its proper divisors (788471804).

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

388908036 is a wasteful number, since it uses less digits than its factorization.

388908036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 388908036 is about 19720.7514055626. The cubic root of 388908036 is about 729.9318357570.

The spelling of 388908036 in words is "three hundred eighty-eight million, nine hundred eight thousand, thirty-six".