42442916 has 12 divisors (see below), whose sum is σ = 74341680. Its totient is φ = 21202440.

The previous prime is 42442891. The next prime is 42442949. The reversal of 42442916 is 61924424.

It is a super-2 number, since 2×42442916² = 3602802237166112, which contains 22 as substring.

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, 1055 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (6195140).

Almost surely, 2^42442916 is an apocalyptic number.

It is an amenable number.

42442916 is a deficient number, since it is larger than the sum of its proper divisors (31898764).

42442916 is a wasteful number, since it uses less digits than its factorization.

42442916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514 (or 9512 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 42442916 is about 6514.8227911433. The cubic root of 42442916 is about 348.8202893572.

The spelling of 42442916 in words is "forty-two million, four hundred forty-two thousand, nine hundred sixteen".