400030234137 has 6 divisors (see below), whose sum is σ = 577821449322. Its totient is φ = 266686822752.

The previous prime is 400030234129. The next prime is 400030234159. The reversal of 400030234137 is 731432030004.

It can be written as a sum of positive squares in only one way, i.e., 334033137936 + 65997096201 = 577956^2 + 256899^2 .

It is not a de Polignac number, because 400030234137 - 2³ = 400030234129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400030234137.

It is not an unprimeable number, because it can be changed into a prime (400030234127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22223901888 + ... + 22223901905.

It is an arithmetic number, because the mean of its divisors is an integer number (96303574887).

Almost surely, 2^400030234137 is an apocalyptic number.

It is an amenable number.

400030234137 is a deficient number, since it is larger than the sum of its proper divisors (177791215185).

400030234137 is a wasteful number, since it uses less digits than its factorization.

400030234137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44447803799 (or 44447803796 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The spelling of 400030234137 in words is "four hundred billion, thirty million, two hundred thirty-four thousand, one hundred thirty-seven".