399705174041 has 4 divisors (see below), whose sum is σ = 399735832272. Its totient is φ = 399674515812.

The previous prime is 399705174031. The next prime is 399705174047. The reversal of 399705174041 is 140471507993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140471507993 = 75017 ⋅1872529.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399705174041 is a prime.

It is a super-2 number, since 2×399705174041² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399705174047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15309551 + ... + 15335636.

It is an arithmetic number, because the mean of its divisors is an integer number (99933958068).

Almost surely, 2^399705174041 is an apocalyptic number.

It is an amenable number.

399705174041 is a deficient number, since it is larger than the sum of its proper divisors (30658231).

399705174041 is a wasteful number, since it uses less digits than its factorization.

399705174041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30658230.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 399705174041 in words is "three hundred ninety-nine billion, seven hundred five million, one hundred seventy-four thousand, forty-one".