390604242 has 32 divisors (see below), whose sum is σ = 939801600. Its totient is φ = 105727248.

The previous prime is 390604211. The next prime is 390604243. The reversal of 390604242 is 242406093.

It is not an unprimeable number, because it can be changed into a prime (390604243) 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 15 ways as a sum of consecutive naturals, for example, 243942 + ... + 245537.

It is an arithmetic number, because the mean of its divisors is an integer number (29368800).

Almost surely, 2^390604242 is an apocalyptic number.

390604242 is an abundant number, since it is smaller than the sum of its proper divisors (549197358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390604242 is a wasteful number, since it uses less digits than its factorization.

390604242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489510.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 390604242 is about 19763.7102285983. The cubic root of 390604242 is about 730.9914856817.

The spelling of 390604242 in words is "three hundred ninety million, six hundred four thousand, two hundred forty-two".