442774544 has 20 divisors (see below), whose sum is σ = 858516480. Its totient is φ = 221221920.

The previous prime is 442774543. The next prime is 442774559. The reversal of 442774544 is 445477244.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (442774543) 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, 13409 + ... + 32639.

It is an arithmetic number, because the mean of its divisors is an integer number (42925824).

Almost surely, 2^442774544 is an apocalyptic number.

It is an amenable number.

442774544 is a deficient number, since it is larger than the sum of its proper divisors (415741936).

442774544 is a wasteful number, since it uses less digits than its factorization.

442774544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20678 (or 20672 counting only the distinct ones).

The product of its digits is 501760, while the sum is 41.

The square root of 442774544 is about 21042.2086293241. The cubic root of 442774544 is about 762.1858494104.

The spelling of 442774544 in words is "four hundred forty-two million, seven hundred seventy-four thousand, five hundred forty-four".