42440324242 has 4 divisors (see below), whose sum is σ = 63660486366. Its totient is φ = 21220162120.

The previous prime is 42440324231. The next prime is 42440324261. The reversal of 42440324242 is 24242304424.

42440324242 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., 41661300321 + 779023921 = 204111^2 + 27911^2 .

It is a super-2 number, since 2×42440324242² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610081059 + ... + 10610081062.

Almost surely, 2^42440324242 is an apocalyptic number.

42440324242 is a deficient number, since it is larger than the sum of its proper divisors (21220162124).

42440324242 is a wasteful number, since it uses less digits than its factorization.

42440324242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21220162123.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 42440324242 its reverse (24242304424), we get a palindrome (66682628666).

The spelling of 42440324242 in words is "forty-two billion, four hundred forty million, three hundred twenty-four thousand, two hundred forty-two".