40220452432542 has 64 divisors (see below), whose sum is σ = 85397141376000. Its totient is φ = 12601447161600.

The previous prime is 40220452432513. The next prime is 40220452432579. The reversal of 40220452432542 is 24523425402204.

40220452432542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40220452432542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6361834 + ... + 10996082.

It is an arithmetic number, because the mean of its divisors is an integer number (1334330334000).

Almost surely, 2^{40220452432542} is an apocalyptic number.

40220452432542 is an abundant number, since it is smaller than the sum of its proper divisors (45176688943458).

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

40220452432542 is a wasteful number, since it uses less digits than its factorization.

40220452432542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635369.

The product of its (nonzero) digits is 614400, while the sum is 39.

Adding to 40220452432542 its reverse (24523425402204), we get a palindrome (64743877834746).

The spelling of 40220452432542 in words is "forty trillion, two hundred twenty billion, four hundred fifty-two million, four hundred thirty-two thousand, five hundred forty-two".