40421322442 has 4 divisors (see below), whose sum is σ = 60631983666. Its totient is φ = 20210661220.

The previous prime is 40421322419. The next prime is 40421322457. The reversal of 40421322442 is 24422312404.

40421322442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26504165601 + 13917156841 = 162801^2 + 117971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40421322442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105330609 + ... + 10105330612.

Almost surely, 2^40421322442 is an apocalyptic number.

40421322442 is a deficient number, since it is larger than the sum of its proper divisors (20210661224).

40421322442 is a wasteful number, since it uses less digits than its factorization.

40421322442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210661223.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40421322442 its reverse (24422312404), we get a palindrome (64843634846).

The spelling of 40421322442 in words is "forty billion, four hundred twenty-one million, three hundred twenty-two thousand, four hundred forty-two".