442164895 has 4 divisors (see below), whose sum is σ = 530597880. Its totient is φ = 353731912.

The previous prime is 442164893. The next prime is 442164929. The reversal of 442164895 is 598461244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442164895 - 2¹ = 442164893 is a prime.

It is a super-2 number, since 2×442164895² = 391019588740722050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442164893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44216485 + ... + 44216494.

It is an arithmetic number, because the mean of its divisors is an integer number (132649470).

Almost surely, 2^442164895 is an apocalyptic number.

442164895 is a deficient number, since it is larger than the sum of its proper divisors (88432985).

442164895 is an equidigital number, since it uses as much as digits as its factorization.

442164895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88432984.

The product of its digits is 276480, while the sum is 43.

The square root of 442164895 is about 21027.7173035972. The cubic root of 442164895 is about 761.8358750091.

The spelling of 442164895 in words is "four hundred forty-two million, one hundred sixty-four thousand, eight hundred ninety-five".