42392866440 has 64 divisors (see below), whose sum is σ = 129334190400. Its totient is φ = 11113156352.

The previous prime is 42392866379. The next prime is 42392866447. The reversal of 42392866440 is 4466829324.

It is a self number, because there is not a number n which added to its sum of digits gives 42392866440.

It is not an unprimeable number, because it can be changed into a prime (42392866447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2986767 + ... + 3000926.

It is an arithmetic number, because the mean of its divisors is an integer number (2020846725).

Almost surely, 2^42392866440 is an apocalyptic number.

42392866440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42392866440 is an abundant number, since it is smaller than the sum of its proper divisors (86941323960).

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

42392866440 is a wasteful number, since it uses less digits than its factorization.

42392866440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987766 (or 5987762 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 42392866440 in words is "forty-two billion, three hundred ninety-two million, eight hundred sixty-six thousand, four hundred forty".