394840130031 has 12 divisors (see below), whose sum is σ = 570375469560. Its totient is φ = 263203290000.

The previous prime is 394840130029. The next prime is 394840130033. The reversal of 394840130031 is 130031048493.

It is an interprime number because it is at equal distance from previous prime (394840130029) and next prime (394840130033).

It is not a de Polignac number, because 394840130031 - 2¹ = 394840130029 is a prime.

It is a super-2 number, since 2×394840130031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394840130033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1848396 + ... + 2050913.

It is an arithmetic number, because the mean of its divisors is an integer number (47531289130).

Almost surely, 2^394840130031 is an apocalyptic number.

394840130031 is a deficient number, since it is larger than the sum of its proper divisors (175535339529).

394840130031 is a wasteful number, since it uses less digits than its factorization.

394840130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910566 (or 3910563 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 394840130031 in words is "three hundred ninety-four billion, eight hundred forty million, one hundred thirty thousand, thirty-one".