442056132439 has 16 divisors (see below), whose sum is σ = 460084204800. Its totient is φ = 424382809536.

The previous prime is 442056132437. The next prime is 442056132461. The reversal of 442056132439 is 934231650244.

It is a cyclic number.

It is not a de Polignac number, because 442056132439 - 2¹ = 442056132437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442056132395 and 442056132404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442056132437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19089502 + ... + 19112644.

It is an arithmetic number, because the mean of its divisors is an integer number (28755262800).

Almost surely, 2^442056132439 is an apocalyptic number.

442056132439 is a deficient number, since it is larger than the sum of its proper divisors (18028072361).

442056132439 is a wasteful number, since it uses less digits than its factorization.

442056132439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30774.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 442056132439 in words is "four hundred forty-two billion, fifty-six million, one hundred thirty-two thousand, four hundred thirty-nine".