388081798 has 12 divisors (see below), whose sum is σ = 630346428. Its totient is φ = 179114520.

The previous prime is 388081787. The next prime is 388081823. The reversal of 388081798 is 897180883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573748 + ... + 574423.

It is an arithmetic number, because the mean of its divisors is an integer number (52528869).

Almost surely, 2^388081798 is an apocalyptic number.

388081798 is a deficient number, since it is larger than the sum of its proper divisors (242264630).

388081798 is a wasteful number, since it uses less digits than its factorization.

388081798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148199 (or 1148186 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 388081798 is about 19699.7918263113. The cubic root of 388081798 is about 729.4145540657.

The spelling of 388081798 in words is "three hundred eighty-eight million, eighty-one thousand, seven hundred ninety-eight".