388218094 has 32 divisors (see below), whose sum is σ = 656322912. Its totient is φ = 172110400.

The previous prime is 388218067. The next prime is 388218109. The reversal of 388218094 is 490812883.

It is a self number, because there is not a number n which added to its sum of digits gives 388218094.

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, 107364 + ... + 110920.

It is an arithmetic number, because the mean of its divisors is an integer number (20510091).

Almost surely, 2^388218094 is an apocalyptic number.

388218094 is a deficient number, since it is larger than the sum of its proper divisors (268104818).

388218094 is a wasteful number, since it uses less digits than its factorization.

388218094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 388218094 is about 19703.2508485275. The cubic root of 388218094 is about 729.4999352494.

The spelling of 388218094 in words is "three hundred eighty-eight million, two hundred eighteen thousand, ninety-four".