388439274 has 8 divisors (see below), whose sum is σ = 776878560. Its totient is φ = 129479756.

The previous prime is 388439263. The next prime is 388439299. The reversal of 388439274 is 472934883.

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

388439274 is an admirable 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, 32369934 + ... + 32369945.

It is an arithmetic number, because the mean of its divisors is an integer number (97109820).

Almost surely, 2^388439274 is an apocalyptic number.

388439274 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.

388439274 is a wasteful number, since it uses less digits than its factorization.

388439274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64739884.

The product of its digits is 1161216, while the sum is 48.

The square root of 388439274 is about 19708.8628286870. The cubic root of 388439274 is about 729.6384485968.

The spelling of 388439274 in words is "three hundred eighty-eight million, four hundred thirty-nine thousand, two hundred seventy-four".