388042706 has 8 divisors (see below), whose sum is σ = 607371264. Its totient is φ = 185585620.

The previous prime is 388042687. The next prime is 388042723. The reversal of 388042706 is 607240883.

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

It is a self number, because there is not a number n which added to its sum of digits gives 388042706.

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, 4217810 + ... + 4217901.

It is an arithmetic number, because the mean of its divisors is an integer number (75921408).

Almost surely, 2^388042706 is an apocalyptic number.

388042706 is a deficient number, since it is larger than the sum of its proper divisors (219328558).

388042706 is a wasteful number, since it uses less digits than its factorization.

388042706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8435736.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 388042706 is about 19698.7996080980. The cubic root of 388042706 is about 729.3900616079.

The spelling of 388042706 in words is "three hundred eighty-eight million, forty-two thousand, seven hundred six".