40440022442 has 4 divisors (see below), whose sum is σ = 60660033666. Its totient is φ = 20220011220.

The previous prime is 40440022439. The next prime is 40440022453. The reversal of 40440022442 is 24422004404.

40440022442 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., 28689245641 + 11750776801 = 169379^2 + 108401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110005609 + ... + 10110005612.

Almost surely, 2^40440022442 is an apocalyptic number.

40440022442 is a deficient number, since it is larger than the sum of its proper divisors (20220011224).

40440022442 is a wasteful number, since it uses less digits than its factorization.

40440022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20220011223.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40440022442 its reverse (24422004404), we get a palindrome (64862026846).

The spelling of 40440022442 in words is "forty billion, four hundred forty million, twenty-two thousand, four hundred forty-two".