10640365 has 8 divisors (see below), whose sum is σ = 12843288. Its totient is φ = 8462400.

The previous prime is 10640363. The next prime is 10640369. The reversal of 10640365 is 56304601.

10640365 = T₅₄ + T₅₅ + ... + T₃₉₉.

10640365 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2328676 + 8311689 = 1526^2 + 2883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10640365 - 2¹ = 10640363 is a prime.

It is a super-2 number, since 2×10640365² = 226434734666450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10640363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5286 + ... + 7015.

It is an arithmetic number, because the mean of its divisors is an integer number (1605411).

Almost surely, 2^10640365 is an apocalyptic number.

It is an amenable number.

10640365 is a deficient number, since it is larger than the sum of its proper divisors (2202923).

10640365 is a wasteful number, since it uses less digits than its factorization.

10640365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 10640365 is about 3261.9572345449. The cubic root of 10640365 is about 219.9474047825.

Adding to 10640365 its reverse (56304601), we get a palindrome (66944966).

The spelling of 10640365 in words is "ten million, six hundred forty thousand, three hundred sixty-five".