42765916 has 12 divisors (see below), whose sum is σ = 75742632. Its totient is φ = 21125168.

The previous prime is 42765913. The next prime is 42765929. The reversal of 42765916 is 61956724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42765913) 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, 64075 + ... + 64738.

It is an arithmetic number, because the mean of its divisors is an integer number (6311886).

Almost surely, 2^42765916 is an apocalyptic number.

It is an amenable number.

42765916 is a deficient number, since it is larger than the sum of its proper divisors (32976716).

42765916 is a wasteful number, since it uses less digits than its factorization.

42765916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128900 (or 128898 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 42765916 is about 6539.5654289869. The cubic root of 42765916 is about 349.7029207001.

It can be divided in two parts, 42765 and 916, that added together give a square (43681 = 209²).

The spelling of 42765916 in words is "forty-two million, seven hundred sixty-five thousand, nine hundred sixteen".