42928265 has 16 divisors (see below), whose sum is σ = 53704080. Its totient is φ = 32901120.

The previous prime is 42928261. The next prime is 42928283. The reversal of 42928265 is 56282924.

It can be written as a sum of positive squares in 8 ways, for example, as 104329 + 42823936 = 323^2 + 6544^2 .

It is not a de Polignac number, because 42928265 - 2² = 42928261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42928261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18785 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (3356505).

Almost surely, 2^42928265 is an apocalyptic number.

It is an amenable number.

42928265 is a deficient number, since it is larger than the sum of its proper divisors (10775815).

42928265 is a wasteful number, since it uses less digits than its factorization.

42928265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its digits is 69120, while the sum is 38.

The square root of 42928265 is about 6551.9664986934. The cubic root of 42928265 is about 350.1448787962.

The spelling of 42928265 in words is "forty-two million, nine hundred twenty-eight thousand, two hundred sixty-five".