390343238 has 8 divisors (see below), whose sum is σ = 587193600. Its totient is φ = 194612040.

The previous prime is 390343237. The next prime is 390343241. The reversal of 390343238 is 832343093.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 390343198 and 390343207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390343237) 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, 278918 + ... + 280313.

It is an arithmetic number, because the mean of its divisors is an integer number (73399200).

Almost surely, 2^390343238 is an apocalyptic number.

390343238 is a deficient number, since it is larger than the sum of its proper divisors (196850362).

390343238 is a wasteful number, since it uses less digits than its factorization.

390343238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559582.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 390343238 is about 19757.1060127742. The cubic root of 390343238 is about 730.8286318320.

The spelling of 390343238 in words is "three hundred ninety million, three hundred forty-three thousand, two hundred thirty-eight".