42544416 has 24 divisors (see below), whose sum is σ = 111679344. Its totient is φ = 14181440.

The previous prime is 42544393. The next prime is 42544451. The reversal of 42544416 is 61444524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221490 + ... + 221681.

It is an arithmetic number, because the mean of its divisors is an integer number (4653306).

Almost surely, 2^42544416 is an apocalyptic number.

It is an amenable number.

42544416 is an abundant number, since it is smaller than the sum of its proper divisors (69134928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42544416 is a wasteful number, since it uses less digits than its factorization.

42544416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443184 (or 443176 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 42544416 is about 6522.6080673301. The cubic root of 42544416 is about 349.0981297828.

The spelling of 42544416 in words is "forty-two million, five hundred forty-four thousand, four hundred sixteen".