442256130 has 48 divisors (see below), whose sum is σ = 1162806840. Its totient is φ = 116607744.

The previous prime is 442256117. The next prime is 442256183. The reversal of 442256130 is 31652244.

442256130 is a `hidden beast` number, since 4 + 42 + 2 + 5 + 613 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 313183809 + 129072321 = 17697^2 + 11361^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442256094 and 442256103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19597 + ... + 35616.

Almost surely, 2^442256130 is an apocalyptic number.

442256130 is an abundant number, since it is smaller than the sum of its proper divisors (720550710).

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

442256130 is a wasteful number, since it uses less digits than its factorization.

442256130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55315 (or 55312 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 442256130 is about 21029.8865902791. The cubic root of 442256130 is about 761.8882697280. Note that the first 3 decimals are identical.

The spelling of 442256130 in words is "four hundred forty-two million, two hundred fifty-six thousand, one hundred thirty".