399348143269 has 8 divisors (see below), whose sum is σ = 402053968800. Its totient is φ = 396642659856.

The previous prime is 399348143261. The next prime is 399348143291. The reversal of 399348143269 is 962341843993.

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 399348143269 - 2³ = 399348143261 is a prime.

It is a super-2 number, since 2×399348143269² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399348143261) 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, 2525862 + ... + 2679304.

It is an arithmetic number, because the mean of its divisors is an integer number (50256746100).

Almost surely, 2^399348143269 is an apocalyptic number.

It is an amenable number.

399348143269 is a deficient number, since it is larger than the sum of its proper divisors (2705825531).

399348143269 is a wasteful number, since it uses less digits than its factorization.

399348143269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171059.

The product of its digits is 30233088, while the sum is 61.

The spelling of 399348143269 in words is "three hundred ninety-nine billion, three hundred forty-eight million, one hundred forty-three thousand, two hundred sixty-nine".