42516044 has 18 divisors (see below), whose sum is σ = 75107340. Its totient is φ = 21058632.

The previous prime is 42516043. The next prime is 42516073. The reversal of 42516044 is 44061524.

It is a super-2 number, since 2×42516044² = 3615227994819872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42516043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64187 + ... + 64845.

It is an arithmetic number, because the mean of its divisors is an integer number (4172630).

Almost surely, 2^42516044 is an apocalyptic number.

It is an amenable number.

42516044 is a deficient number, since it is larger than the sum of its proper divisors (32591296).

42516044 is a wasteful number, since it uses less digits than its factorization.

42516044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 42516044 is about 6520.4328077207. The cubic root of 42516044 is about 349.0205103941.

Adding to 42516044 its reverse (44061524), we get a palindrome (86577568).

The spelling of 42516044 in words is "forty-two million, five hundred sixteen thousand, forty-four".