399229631070 has 32 divisors (see below), whose sum is σ = 972451882368. Its totient is φ = 104872260768.

The previous prime is 399229631063. The next prime is 399229631071. The reversal of 399229631070 is 70136922993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399229631071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99308844 + ... + 99312863.

It is an arithmetic number, because the mean of its divisors is an integer number (30389121324).

Almost surely, 2^399229631070 is an apocalyptic number.

399229631070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

399229631070 is an abundant number, since it is smaller than the sum of its proper divisors (573222251298).

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

399229631070 is a wasteful number, since it uses less digits than its factorization.

399229631070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198621784.

The product of its (nonzero) digits is 1102248, while the sum is 51.

The spelling of 399229631070 in words is "three hundred ninety-nine billion, two hundred twenty-nine million, six hundred thirty-one thousand, seventy".