390076878 has 32 divisors (see below), whose sum is σ = 831628800. Its totient is φ = 121620096.

The previous prime is 390076871. The next prime is 390076891. The reversal of 390076878 is 878670093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390076871) 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, 12651 + ... + 30662.

It is an arithmetic number, because the mean of its divisors is an integer number (25988400).

Almost surely, 2^390076878 is an apocalyptic number.

390076878 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

390076878 is an abundant number, since it is smaller than the sum of its proper divisors (441551922).

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

390076878 is a wasteful number, since it uses less digits than its factorization.

390076878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43416.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 390076878 is about 19750.3639966457. The cubic root of 390076878 is about 730.6623612356.

The spelling of 390076878 in words is "three hundred ninety million, seventy-six thousand, eight hundred seventy-eight".