42644416 has 28 divisors (see below), whose sum is σ = 86429088. Its totient is φ = 20867072.

The previous prime is 42644411. The next prime is 42644431. The reversal of 42644416 is 61444624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4081 + ... + 10096.

Almost surely, 2^42644416 is an apocalyptic number.

It is an amenable number.

42644416 is an abundant number, since it is smaller than the sum of its proper divisors (43784672).

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

42644416 is a wasteful number, since it uses less digits than its factorization.

42644416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14236 (or 14226 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 42644416 is about 6530.2692134398. The cubic root of 42644416 is about 349.3714323707.

The spelling of 42644416 in words is "forty-two million, six hundred forty-four thousand, four hundred sixteen".