399292076 has 12 divisors (see below), whose sum is σ = 699115872. Its totient is φ = 199544688.

The previous prime is 399292063. The next prime is 399292079. The reversal of 399292076 is 670292993.

It is a self number, because there is not a number n which added to its sum of digits gives 399292076.

It is not an unprimeable number, because it can be changed into a prime (399292079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16100 + ... + 32523.

It is an arithmetic number, because the mean of its divisors is an integer number (58259656).

Almost surely, 2^399292076 is an apocalyptic number.

It is an amenable number.

399292076 is a deficient number, since it is larger than the sum of its proper divisors (299823796).

399292076 is a wasteful number, since it uses less digits than its factorization.

399292076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50680 (or 50678 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 399292076 is about 19982.2940624944. The cubic root of 399292076 is about 736.3713739960.

The spelling of 399292076 in words is "three hundred ninety-nine million, two hundred ninety-two thousand, seventy-six".