390967742 has 8 divisors (see below), whose sum is σ = 639765432. Its totient is φ = 177712600.

The previous prime is 390967721. The next prime is 390967771. The reversal of 390967742 is 247769093.

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

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, 8885609 + ... + 8885652.

It is an arithmetic number, because the mean of its divisors is an integer number (79970679).

Almost surely, 2^390967742 is an apocalyptic number.

390967742 is a deficient number, since it is larger than the sum of its proper divisors (248797690).

390967742 is a wasteful number, since it uses less digits than its factorization.

390967742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17771274.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 390967742 is about 19772.9042378706. The cubic root of 390967742 is about 731.2181712398.

The spelling of 390967742 in words is "three hundred ninety million, nine hundred sixty-seven thousand, seven hundred forty-two".