42040022422402 has 8 divisors (see below), whose sum is σ = 64249845589116. Its totient is φ = 20623407226032.

The previous prime is 42040022422379. The next prime is 42040022422471. The reversal of 42040022422402 is 20422422004024.

It can be written as a sum of positive squares in 2 ways, for example, as 35898899081761 + 6141123340641 = 5991569^2 + 2478129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42040022422402² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198301992453 + ... + 198301992664.

Almost surely, 2^{42040022422402} is an apocalyptic number.

42040022422402 is a deficient number, since it is larger than the sum of its proper divisors (22209823166714).

42040022422402 is a wasteful number, since it uses less digits than its factorization.

42040022422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396603985172.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42040022422402 its reverse (20422422004024), we get a palindrome (62462444426426).

The spelling of 42040022422402 in words is "forty-two trillion, forty billion, twenty-two million, four hundred twenty-two thousand, four hundred two".