442266644240 has 40 divisors (see below), whose sum is σ = 1029429380160. Its totient is φ = 176707185536.

The previous prime is 442266644191. The next prime is 442266644251. The reversal of 442266644240 is 42446662244.

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

It is a junction number, because it is equal to n+sod(n) for n = 442266644191 and 442266644200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045350 + ... + 3187269.

It is an arithmetic number, because the mean of its divisors is an integer number (25735734504).

Almost surely, 2^442266644240 is an apocalyptic number.

442266644240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442266644240 is an abundant number, since it is smaller than the sum of its proper divisors (587162735920).

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

442266644240 is a wasteful number, since it uses less digits than its factorization.

442266644240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233519 (or 6233513 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 442266644240 in words is "four hundred forty-two billion, two hundred sixty-six million, six hundred forty-four thousand, two hundred forty".