442542045 has 32 divisors (see below), whose sum is σ = 817879680. Its totient is φ = 201943040.

The previous prime is 442542043. The next prime is 442542073. The reversal of 442542045 is 540245244.

It is not a de Polignac number, because 442542045 - 2¹ = 442542043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442542043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76080 + ... + 81689.

It is an arithmetic number, because the mean of its divisors is an integer number (25558740).

Almost surely, 2^442542045 is an apocalyptic number.

It is an amenable number.

442542045 is a deficient number, since it is larger than the sum of its proper divisors (375337635).

442542045 is a wasteful number, since it uses less digits than its factorization.

442542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157805.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 442542045 is about 21036.6833174814. The cubic root of 442542045 is about 762.0524192210.

Adding to 442542045 its reverse (540245244), we get a palindrome (982787289).

The spelling of 442542045 in words is "four hundred forty-two million, five hundred forty-two thousand, forty-five".