40635265 has 16 divisors (see below), whose sum is σ = 54913536. Its totient is φ = 28598400.

The previous prime is 40635263. The next prime is 40635271. The reversal of 40635265 is 56253604.

It is not a de Polignac number, because 40635265 - 2¹ = 40635263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (40635263) 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, 10212 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (3432096).

Almost surely, 2^40635265 is an apocalyptic number.

It is an amenable number.

40635265 is a deficient number, since it is larger than the sum of its proper divisors (14278271).

40635265 is a wasteful number, since it uses less digits than its factorization.

40635265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23880.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 40635265 is about 6374.5795939811. The cubic root of 40635265 is about 343.7961683444.

Adding to 40635265 its reverse (56253604), we get a palindrome (96888869).

The spelling of 40635265 in words is "forty million, six hundred thirty-five thousand, two hundred sixty-five".