10640355 has 32 divisors (see below), whose sum is σ = 18904320. Its totient is φ = 5066880.

The previous prime is 10640353. The next prime is 10640359. The reversal of 10640355 is 55304601.

It is not a de Polignac number, because 10640355 - 2¹ = 10640353 is a prime.

It is a super-2 number, since 2×10640355² = 226434309052050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9189 + ... + 10281.

It is an arithmetic number, because the mean of its divisors is an integer number (590760).

Almost surely, 2^10640355 is an apocalyptic number.

10640355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10640355 is a deficient number, since it is larger than the sum of its proper divisors (8263965).

10640355 is a wasteful number, since it uses less digits than its factorization.

10640355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 10640355 is about 3261.9557017225. The cubic root of 10640355 is about 219.9473358790.

Adding to 10640355 its reverse (55304601), we get a palindrome (65944956).

The spelling of 10640355 in words is "ten million, six hundred forty thousand, three hundred fifty-five".