392000399 has 16 divisors (see below), whose sum is σ = 474931008. Its totient is φ = 315850752.

The previous prime is 392000383. The next prime is 392000417. The reversal of 392000399 is 993000293.

It is not a de Polignac number, because 392000399 - 2⁴ = 392000383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392000309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135779 + ... + 138635.

It is an arithmetic number, because the mean of its divisors is an integer number (29683188).

Almost surely, 2^392000399 is an apocalyptic number.

392000399 is a deficient number, since it is larger than the sum of its proper divisors (82930609).

392000399 is a wasteful number, since it uses less digits than its factorization.

392000399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 392000399 is about 19798.9999494924. Note that the first 4 decimals coincide. The cubic root of 392000399 is about 731.8613903145.

The spelling of 392000399 in words is "three hundred ninety-two million, three hundred ninety-nine", and thus it is an aban number.