390242673 has 12 divisors (see below), whose sum is σ = 576793360. Its totient is φ = 254111256.

The previous prime is 390242659. The next prime is 390242707. The reversal of 390242673 is 376242093.

It is a happy number.

390242673 is a `hidden beast` number, since 390 + 2 + 4 + 267 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-390242673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (390240673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503803 + ... + 504576.

Almost surely, 2^390242673 is an apocalyptic number.

It is an amenable number.

390242673 is a deficient number, since it is larger than the sum of its proper divisors (186550687).

390242673 is a wasteful number, since it uses less digits than its factorization.

390242673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008428 (or 1008425 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 390242673 is about 19754.5608151637. The cubic root of 390242673 is about 730.7658647706.

The spelling of 390242673 in words is "three hundred ninety million, two hundred forty-two thousand, six hundred seventy-three".