1401304331 has 16 divisors (see below), whose sum is σ = 1658307840. Its totient is φ = 1158585120.

The previous prime is 1401304313. The next prime is 1401304343. The reversal of 1401304331 is 1334031041.

It is not a de Polignac number, because 1401304331 - 2²² = 1397110027 is a prime.

It is a super-2 number, since 2×1401304331² = 3927307656158715122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401304031) 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, 259400 + ... + 264746.

It is an arithmetic number, because the mean of its divisors is an integer number (103644240).

Almost surely, 2^1401304331 is an apocalyptic number.

1401304331 is a deficient number, since it is larger than the sum of its proper divisors (257003509).

1401304331 is a wasteful number, since it uses less digits than its factorization.

1401304331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1401304331 is about 37433.9996660790. Note that the first 3 decimals coincide. The cubic root of 1401304331 is about 1119.0362486903.

Adding to 1401304331 its reverse (1334031041), we get a palindrome (2735335372).

The spelling of 1401304331 in words is "one billion, four hundred one million, three hundred four thousand, three hundred thirty-one".