388340814 has 8 divisors (see below), whose sum is σ = 776681640. Its totient is φ = 129446936.

The previous prime is 388340779. The next prime is 388340833. The reversal of 388340814 is 418043883.

It is a sphenic number, since it is the product of 3 distinct primes.

388340814 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32361729 + ... + 32361740.

It is an arithmetic number, because the mean of its divisors is an integer number (97085205).

Almost surely, 2^388340814 is an apocalyptic number.

388340814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

388340814 is a wasteful number, since it uses less digits than its factorization.

388340814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64723474.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 388340814 is about 19706.3648093706. The cubic root of 388340814 is about 729.5767947964.

The spelling of 388340814 in words is "three hundred eighty-eight million, three hundred forty thousand, eight hundred fourteen".