400002232042 has 24 divisors (see below), whose sum is σ = 698134887360. Its totient is φ = 171387329400.

The previous prime is 400002231991. The next prime is 400002232057. The reversal of 400002232042 is 240232200004.

It is a super-2 number, since 2×400002232042² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100584 + ... + 900067.

It is an arithmetic number, because the mean of its divisors is an integer number (29088953640).

Almost surely, 2^400002232042 is an apocalyptic number.

400002232042 is a deficient number, since it is larger than the sum of its proper divisors (298132655318).

400002232042 is a wasteful number, since it uses less digits than its factorization.

400002232042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004746 (or 1004739 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 400002232042 its reverse (240232200004), we get a palindrome (640234432046).

It can be divided in two parts, 4000022 and 32042, that added together give a square (4032064 = 2008²).

The spelling of 400002232042 in words is "four hundred billion, two million, two hundred thirty-two thousand, forty-two".