442000787 has 8 divisors (see below), whose sum is σ = 453640992. Its totient is φ = 430401600.

The previous prime is 442000753. The next prime is 442000817. The reversal of 442000787 is 787000244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442000787 - 2⁶ = 442000723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442000717) 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, 12218 + ... + 32144.

It is an arithmetic number, because the mean of its divisors is an integer number (56705124).

Almost surely, 2^442000787 is an apocalyptic number.

442000787 is a deficient number, since it is larger than the sum of its proper divisors (11640205).

442000787 is a wasteful number, since it uses less digits than its factorization.

442000787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20509.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 442000787 is about 21023.8147585066. The cubic root of 442000787 is about 761.7416124134.

The spelling of 442000787 in words is "four hundred forty-two million, seven hundred eighty-seven", and thus it is an aban number.