40220031042 has 48 divisors (see below), whose sum is σ = 89525242872. Its totient is φ = 13040455680.

The previous prime is 40220030987. The next prime is 40220031097. The reversal of 40220031042 is 24013002204.

It is an interprime number because it is at equal distance from previous prime (40220030987) and next prime (40220031097).

It can be written as a sum of positive squares in 4 ways, for example, as 39952414161 + 267616881 = 199881^2 + 16359^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 2977608 + ... + 2991084.

Almost surely, 2^40220031042 is an apocalyptic number.

40220031042 is an abundant number, since it is smaller than the sum of its proper divisors (49305211830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40220031042 is a wasteful number, since it uses less digits than its factorization.

40220031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18003 (or 18000 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40220031042 its reverse (24013002204), we get a palindrome (64233033246).

The spelling of 40220031042 in words is "forty billion, two hundred twenty million, thirty-one thousand, forty-two".