42424404004 has 12 divisors (see below), whose sum is σ = 74977784028. Its totient is φ = 21002180000.

The previous prime is 42424403899. The next prime is 42424404019. The reversal of 42424404004 is 40040442424.

It can be written as a sum of positive squares in 2 ways, for example, as 40413060900 + 2011343104 = 201030^2 + 44848^2 .

It is a super-2 number, since 2×42424404004² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52505047 + ... + 52505854.

It is an arithmetic number, because the mean of its divisors is an integer number (6248148669).

Almost surely, 2^42424404004 is an apocalyptic number.

It is an amenable number.

42424404004 is a deficient number, since it is larger than the sum of its proper divisors (32553380024).

42424404004 is a wasteful number, since it uses less digits than its factorization.

42424404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105011006 (or 105011004 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42424404004 its reverse (40040442424), we get a palindrome (82464846428).

The spelling of 42424404004 in words is "forty-two billion, four hundred twenty-four million, four hundred four thousand, four".