442857465156 has 24 divisors (see below), whose sum is σ = 1042478637984. Its totient is φ = 146312790400.

The previous prime is 442857465143. The next prime is 442857465161. The reversal of 442857465156 is 651564758244.

It is a happy number.

It is a super-2 number, since 2×442857465156² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442857465096 and 442857465105.

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, 163294170 + ... + 163296881.

It is an arithmetic number, because the mean of its divisors is an integer number (43436609916).

Almost surely, 2^442857465156 is an apocalyptic number.

It is an amenable number.

442857465156 is an abundant number, since it is smaller than the sum of its proper divisors (599621172828).

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

442857465156 is a wasteful number, since it uses less digits than its factorization.

442857465156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326591171 (or 326591169 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 57.

The spelling of 442857465156 in words is "four hundred forty-two billion, eight hundred fifty-seven million, four hundred sixty-five thousand, one hundred fifty-six".