390908046 has 16 divisors (see below), whose sum is σ = 815808384. Its totient is φ = 124637304.

The previous prime is 390908041. The next prime is 390908087. The reversal of 390908046 is 640809093.

It is a junction number, because it is equal to n+sod(n) for n = 390907995 and 390908013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390908041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416196 + ... + 1416471.

It is an arithmetic number, because the mean of its divisors is an integer number (50988024).

Almost surely, 2^390908046 is an apocalyptic number.

390908046 is an abundant number, since it is smaller than the sum of its proper divisors (424900338).

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

390908046 is a wasteful number, since it uses less digits than its factorization.

390908046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832695.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 390908046 is about 19771.3946397314. The cubic root of 390908046 is about 731.1809533170.

The spelling of 390908046 in words is "three hundred ninety million, nine hundred eight thousand, forty-six".