1401440031 has 24 divisors (see below), whose sum is σ = 2072438784. Its totient is φ = 912174480.

The previous prime is 1401440023. The next prime is 1401440059. The reversal of 1401440031 is 1300441041.

It is not a de Polignac number, because 1401440031 - 2³ = 1401440023 is a prime.

It is a super-2 number, since 2×1401440031² = 3928068320978561922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1401439986 and 1401440013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401440731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178470 + ... + 186156.

It is an arithmetic number, because the mean of its divisors is an integer number (86351616).

Almost surely, 2^1401440031 is an apocalyptic number.

1401440031 is a deficient number, since it is larger than the sum of its proper divisors (670998753).

1401440031 is a wasteful number, since it uses less digits than its factorization.

1401440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171 (or 8168 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1401440031 is about 37435.8121455913. The cubic root of 1401440031 is about 1119.0723693992.

Adding to 1401440031 its reverse (1300441041), we get a palindrome (2701881072).

It can be divided in two parts, 14014 and 40031, that added together give a palindrome (54045).

The spelling of 1401440031 in words is "one billion, four hundred one million, four hundred forty thousand, thirty-one".