42044416 has 44 divisors (see below), whose sum is σ = 88512280. Its totient is φ = 19906560.

The previous prime is 42044413. The next prime is 42044419. The reversal of 42044416 is 61444024.

It is an interprime number because it is at equal distance from previous prime (42044413) and next prime (42044419).

It is not an unprimeable number, because it can be changed into a prime (42044413) 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, 18376 + ... + 20536.

Almost surely, 2^42044416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42044416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44256140).

42044416 is an abundant number, since it is smaller than the sum of its proper divisors (46467864).

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

42044416 is a wasteful number, since it uses less digits than its factorization.

42044416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2182 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 42044416 is about 6484.1665617101. The cubic root of 42044416 is about 347.7251540182.

The spelling of 42044416 in words is "forty-two million, forty-four thousand, four hundred sixteen".