42444662320 has 40 divisors (see below), whose sum is σ = 98908714080. Its totient is φ = 16939176960.

The previous prime is 42444662269. The next prime is 42444662321. The reversal of 42444662320 is 2326644424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 42444662320.

It is not an unprimeable number, because it can be changed into a prime (42444662321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569161 + ... + 639400.

It is an arithmetic number, because the mean of its divisors is an integer number (2472717852).

Almost surely, 2^42444662320 is an apocalyptic number.

42444662320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42444662320 is an abundant number, since it is smaller than the sum of its proper divisors (56464051760).

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

42444662320 is a wasteful number, since it uses less digits than its factorization.

42444662320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209013 (or 1209007 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

The spelling of 42444662320 in words is "forty-two billion, four hundred forty-four million, six hundred sixty-two thousand, three hundred twenty".