42440604426 has 64 divisors (see below), whose sum is σ = 103217587200. Its totient is φ = 12819380400.

The previous prime is 42440604403. The next prime is 42440604457. The reversal of 42440604426 is 62440604424.

42440604426 is a `hidden beast` number, since 4 + 2 + 4 + 4 + 0 + 604 + 42 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69865 + ... + 299603.

It is an arithmetic number, because the mean of its divisors is an integer number (1612774800).

Almost surely, 2^42440604426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42440604426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51608793600).

42440604426 is an abundant number, since it is smaller than the sum of its proper divisors (60776982774).

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

42440604426 is a wasteful number, since it uses less digits than its factorization.

42440604426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230072 (or 230066 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 42440604426 in words is "forty-two billion, four hundred forty million, six hundred four thousand, four hundred twenty-six".