400141013 has 4 divisors (see below), whose sum is σ = 400608780. Its totient is φ = 399673248.

The previous prime is 400140991. The next prime is 400141031. The reversal of 400141013 is 310141004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 373339684 + 26801329 = 19322^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 400141013 - 2²⁴ = 383363797 is a prime.

It is a super-2 number, since 2×400141013² = 320225660569332338, which 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 (400141213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232598 + ... + 234311.

It is an arithmetic number, because the mean of its divisors is an integer number (100152195).

Almost surely, 2^400141013 is an apocalyptic number.

It is an amenable number.

400141013 is a deficient number, since it is larger than the sum of its proper divisors (467767).

400141013 is an equidigital number, since it uses as much as digits as its factorization.

400141013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467766.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 400141013 is about 20003.5250143568. The cubic root of 400141013 is about 736.8928722779.

Adding to 400141013 its reverse (310141004), we get a palindrome (710282017).

Subtracting from 400141013 its reverse (310141004), we obtain a palindrome (90000009).

The spelling of 400141013 in words is "four hundred million, one hundred forty-one thousand, thirteen".