400120130404 has 12 divisors (see below), whose sum is σ = 724355408700. Its totient is φ = 193161442208.

The previous prime is 400120130387. The next prime is 400120130477. The reversal of 400120130404 is 404031021004.

It can be written as a sum of positive squares in 2 ways, for example, as 192412067904 + 207708062500 = 438648^2 + 455750^2 .

It is a super-2 number, since 2×400120130404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724655619 + ... + 1724655850.

It is an arithmetic number, because the mean of its divisors is an integer number (60362950725).

Almost surely, 2^400120130404 is an apocalyptic number.

It is an amenable number.

400120130404 is a deficient number, since it is larger than the sum of its proper divisors (324235278296).

400120130404 is a wasteful number, since it uses less digits than its factorization.

400120130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449311502 (or 3449311500 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 400120130404 its reverse (404031021004), we get a palindrome (804151151408).

The spelling of 400120130404 in words is "four hundred billion, one hundred twenty million, one hundred thirty thousand, four hundred four".