399972304223 has 8 divisors (see below), whose sum is σ = 408199026960. Its totient is φ = 391793832640.

The previous prime is 399972304219. The next prime is 399972304231. The reversal of 399972304223 is 322403279993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399972304223 - 2² = 399972304219 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 (399972304273) 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, 12046040 + ... + 12079197.

It is an arithmetic number, because the mean of its divisors is an integer number (51024878370).

Almost surely, 2^399972304223 is an apocalyptic number.

399972304223 is a deficient number, since it is larger than the sum of its proper divisors (8226722737).

399972304223 is a wasteful number, since it uses less digits than its factorization.

399972304223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24125577.

The product of its (nonzero) digits is 4408992, while the sum is 53.

The spelling of 399972304223 in words is "three hundred ninety-nine billion, nine hundred seventy-two million, three hundred four thousand, two hundred twenty-three".