442146134494 has 16 divisors (see below), whose sum is σ = 693183827232. Its totient is φ = 211116220128.

The previous prime is 442146134489. The next prime is 442146134497. The reversal of 442146134494 is 494431641244.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442146134497) 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, 7811829 + ... + 7868224.

It is an arithmetic number, because the mean of its divisors is an integer number (43323989202).

Almost surely, 2^442146134494 is an apocalyptic number.

442146134494 is a deficient number, since it is larger than the sum of its proper divisors (251037692738).

442146134494 is a wasteful number, since it uses less digits than its factorization.

442146134494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680691.

The product of its digits is 1327104, while the sum is 46.

The spelling of 442146134494 in words is "four hundred forty-two billion, one hundred forty-six million, one hundred thirty-four thousand, four hundred ninety-four".