42407407644 has 48 divisors (see below), whose sum is σ = 114940310016. Its totient is φ = 11917771200.

The previous prime is 42407407631. The next prime is 42407407657. The reversal of 42407407644 is 44670470424.

It is an interprime number because it is at equal distance from previous prime (42407407631) and next prime (42407407657).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42407407596 and 42407407605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4132992 + ... + 4143239.

It is an arithmetic number, because the mean of its divisors is an integer number (2394589792).

Almost surely, 2^42407407644 is an apocalyptic number.

It is an amenable number.

42407407644 is an abundant number, since it is smaller than the sum of its proper divisors (72532902372).

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

42407407644 is a wasteful number, since it uses less digits than its factorization.

42407407644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8276306 (or 8276304 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 42.

The spelling of 42407407644 in words is "forty-two billion, four hundred seven million, four hundred seven thousand, six hundred forty-four".