40851265 has 16 divisors (see below), whose sum is σ = 60334848. Its totient is φ = 25857216.

The previous prime is 40851263. The next prime is 40851277. The reversal of 40851265 is 56215804.

It is not a de Polignac number, because 40851265 - 2¹ = 40851263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40851263) 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, 44437 + ... + 45346.

It is an arithmetic number, because the mean of its divisors is an integer number (3770928).

Almost surely, 2^40851265 is an apocalyptic number.

It is an amenable number.

40851265 is a deficient number, since it is larger than the sum of its proper divisors (19483583).

40851265 is a wasteful number, since it uses less digits than its factorization.

40851265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89808.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 40851265 is about 6391.4994328405. The cubic root of 40851265 is about 344.4042508501.

The spelling of 40851265 in words is "forty million, eight hundred fifty-one thousand, two hundred sixty-five".