394320142044031 has 8 divisors (see below), whose sum is σ = 456356041425920. Its totient is φ = 333710355291768.

The previous prime is 394320142043939. The next prime is 394320142044041. The reversal of 394320142044031 is 130440241023493.

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

It is not a de Polignac number, because 394320142044031 - 2³⁵ = 394285782305663 is a prime.

It is a super-2 number, since 2×394320142044031² (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 (394320142044041) 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, 356528156811 + ... + 356528157916.

It is an arithmetic number, because the mean of its divisors is an integer number (57044505178240).

Almost surely, 2^{394320142044031} is an apocalyptic number.

394320142044031 is a deficient number, since it is larger than the sum of its proper divisors (62035899381889).

394320142044031 is an equidigital number, since it uses as much as digits as its factorization.

394320142044031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713056314813.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 394320142044031 in words is "three hundred ninety-four trillion, three hundred twenty billion, one hundred forty-two million, forty-four thousand, thirty-one".