399348143270 has 64 divisors (see below), whose sum is σ = 808001740800. Its totient is φ = 141400183680.

The previous prime is 399348143261. The next prime is 399348143291. The reversal of 399348143270 is 72341843993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998174 + ... + 1339793.

It is an arithmetic number, because the mean of its divisors is an integer number (12625027200).

Almost surely, 2^399348143270 is an apocalyptic number.

399348143270 is an abundant number, since it is smaller than the sum of its proper divisors (408653597530).

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

399348143270 is a wasteful number, since it uses less digits than its factorization.

399348143270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338053.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 399348143270 in words is "three hundred ninety-nine billion, three hundred forty-eight million, one hundred forty-three thousand, two hundred seventy".