388388854 has 16 divisors (see below), whose sum is σ = 667447200. Its totient is φ = 166042944.

The previous prime is 388388843. The next prime is 388388911. The reversal of 388388854 is 458883883.

It is a happy number.

It is a super-2 number, since 2×388388854² = 301691803822866632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388388795 and 388388804.

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, 28189 + ... + 39640.

It is an arithmetic number, because the mean of its divisors is an integer number (41715450).

Almost surely, 2^388388854 is an apocalyptic number.

388388854 is a deficient number, since it is larger than the sum of its proper divisors (279058346).

388388854 is a wasteful number, since it uses less digits than its factorization.

388388854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68247.

The product of its digits is 5898240, while the sum is 55.

The square root of 388388854 is about 19707.5836672079. The cubic root of 388388854 is about 729.6068778427.

The spelling of 388388854 in words is "three hundred eighty-eight million, three hundred eighty-eight thousand, eight hundred fifty-four".