390204976 has 80 divisors (see below), whose sum is σ = 941011200. Its totient is φ = 152941824.

The previous prime is 390204949. The next prime is 390204979. The reversal of 390204976 is 679402093.

It is not an unprimeable number, because it can be changed into a prime (390204979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58551 + ... + 64873.

It is an arithmetic number, because the mean of its divisors is an integer number (11762640).

Almost surely, 2^390204976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390204976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470505600).

390204976 is an abundant number, since it is smaller than the sum of its proper divisors (550806224).

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

390204976 is a wasteful number, since it uses less digits than its factorization.

390204976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386 (or 6380 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 390204976 is about 19753.6066580258. The cubic root of 390204976 is about 730.7423336281.

The spelling of 390204976 in words is "three hundred ninety million, two hundred four thousand, nine hundred seventy-six".