388997234 has 8 divisors (see below), whose sum is σ = 583582080. Its totient is φ = 194469876.

The previous prime is 388997227. The next prime is 388997237. The reversal of 388997234 is 432799883.

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

It is not an unprimeable number, because it can be changed into a prime (388997237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12887 + ... + 30725.

It is an arithmetic number, because the mean of its divisors is an integer number (72947760).

Almost surely, 2^388997234 is an apocalyptic number.

388997234 is a deficient number, since it is larger than the sum of its proper divisors (194584846).

388997234 is a wasteful number, since it uses less digits than its factorization.

388997234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28744.

The product of its digits is 2612736, while the sum is 53.

The square root of 388997234 is about 19723.0128023079. The cubic root of 388997234 is about 729.9876359950.

The spelling of 388997234 in words is "three hundred eighty-eight million, nine hundred ninety-seven thousand, two hundred thirty-four".