400341013 has 16 divisors (see below), whose sum is σ = 426147840. Its totient is φ = 375295536.

The previous prime is 400340951. The next prime is 400341017. The reversal of 400341013 is 310143004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400341013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400341017) 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, 367756 + ... + 368842.

It is an arithmetic number, because the mean of its divisors is an integer number (26634240).

Almost surely, 2^400341013 is an apocalyptic number.

It is an amenable number.

400341013 is a deficient number, since it is larger than the sum of its proper divisors (25806827).

400341013 is a wasteful number, since it uses less digits than its factorization.

400341013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 400341013 is about 20008.5235087450. The cubic root of 400341013 is about 737.0156240263.

Adding to 400341013 its reverse (310143004), we get a palindrome (710484017).

The spelling of 400341013 in words is "four hundred million, three hundred forty-one thousand, thirteen".