399385112237 has 8 divisors (see below), whose sum is σ = 401637600000. Its totient is φ = 397135080144.

The previous prime is 399385112233. The next prime is 399385112257. The reversal of 399385112237 is 732211583993.

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 399385112237 - 2² = 399385112233 is a prime.

It is a super-2 number, since 2×399385112237² (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 (399385112233) 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, 287237 + ... + 938762.

It is an arithmetic number, because the mean of its divisors is an integer number (50204700000).

Almost surely, 2^399385112237 is an apocalyptic number.

It is an amenable number.

399385112237 is a deficient number, since it is larger than the sum of its proper divisors (2252487763).

399385112237 is a wasteful number, since it uses less digits than its factorization.

399385112237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227835.

The product of its digits is 2449440, while the sum is 53.

The spelling of 399385112237 in words is "three hundred ninety-nine billion, three hundred eighty-five million, one hundred twelve thousand, two hundred thirty-seven".