10644345 has 32 divisors (see below), whose sum is σ = 19443840. Its totient is φ = 5520960.

The previous prime is 10644341. The next prime is 10644371. The reversal of 10644345 is 54344601.

10644345 is a `hidden beast` number, since 10 + 644 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 10644345 - 2² = 10644341 is a prime.

It is a super-2 number, since 2×10644345² = 226604160958050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10644341) 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, 3930 + ... + 6060.

It is an arithmetic number, because the mean of its divisors is an integer number (607620).

Almost surely, 2^10644345 is an apocalyptic number.

10644345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10644345 is a deficient number, since it is larger than the sum of its proper divisors (8799495).

10644345 is a wasteful number, since it uses less digits than its factorization.

10644345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 2176 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 10644345 is about 3262.5672406864. The cubic root of 10644345 is about 219.9748249430.

Adding to 10644345 its reverse (54344601), we get a palindrome (64988946).

The spelling of 10644345 in words is "ten million, six hundred forty-four thousand, three hundred forty-five".