398320142044031 has 16 divisors (see below), whose sum is σ = 400412913382944. Its totient is φ = 396231939293184.

The previous prime is 398320142044009. The next prime is 398320142044067. The reversal of 398320142044031 is 130440241023893.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 398320142044031 - 2²² = 398320137849727 is a prime.

It is a super-2 number, since 2×398320142044031² (a number of 30 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 (398320142044931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568326791 + ... + 569027223.

It is an arithmetic number, because the mean of its divisors is an integer number (25025807086434).

Almost surely, 2^{398320142044031} is an apocalyptic number.

398320142044031 is a deficient number, since it is larger than the sum of its proper divisors (2092771338913).

398320142044031 is a wasteful number, since it uses less digits than its factorization.

398320142044031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703690.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 398320142044031 in words is "three hundred ninety-eight trillion, three hundred twenty billion, one hundred forty-two million, forty-four thousand, thirty-one".