399323645248 has 56 divisors (see below), whose sum is σ = 874860063840. Its totient is φ = 179323845120.

The previous prime is 399323645239. The next prime is 399323645249. The reversal of 399323645248 is 842546323993.

It is a junction number, because it is equal to n+sod(n) for n = 399323645192 and 399323645201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399323645249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3358563 + ... + 3475426.

It is an arithmetic number, because the mean of its divisors is an integer number (15622501140).

Almost surely, 2^399323645248 is an apocalyptic number.

It is an amenable number.

399323645248 is an abundant number, since it is smaller than the sum of its proper divisors (475536418592).

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

399323645248 is a wasteful number, since it uses less digits than its factorization.

399323645248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834095 (or 6834085 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 58.

The spelling of 399323645248 in words is "three hundred ninety-nine billion, three hundred twenty-three million, six hundred forty-five thousand, two hundred forty-eight".