402000024442 has 16 divisors (see below), whose sum is σ = 604921883400. Its totient is φ = 200360361280.

The previous prime is 402000024373. The next prime is 402000024443. The reversal of 402000024442 is 244420000204.

It can be written as a sum of positive squares in 4 ways, for example, as 381801645801 + 20198378641 = 617901^2 + 142121^2 .

It is a super-2 number, since 2×402000024442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402000024443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595284 + ... + 1076272.

Almost surely, 2^402000024442 is an apocalyptic number.

402000024442 is a deficient number, since it is larger than the sum of its proper divisors (202921858958).

402000024442 is a wasteful number, since it uses less digits than its factorization.

402000024442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482321.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 402000024442 its reverse (244420000204), we get a palindrome (646420024646).

The spelling of 402000024442 in words is "four hundred two billion, twenty-four thousand, four hundred forty-two".