130904442 has 24 divisors (see below), whose sum is σ = 286281216. Its totient is φ = 43226376.

The previous prime is 130904407. The next prime is 130904443. The reversal of 130904442 is 244409031.

130904442 is a `hidden beast` number, since 130 + 90 + 4 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (130904443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32058 + ... + 35909.

It is an arithmetic number, because the mean of its divisors is an integer number (11928384).

Almost surely, 2^130904442 is an apocalyptic number.

130904442 is an abundant number, since it is smaller than the sum of its proper divisors (155376774).

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

130904442 is a wasteful number, since it uses less digits than its factorization.

130904442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68082 (or 68079 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 130904442 is about 11441.3479101022. The cubic root of 130904442 is about 507.7517878288.

The spelling of 130904442 in words is "one hundred thirty million, nine hundred four thousand, four hundred forty-two".