10320645 has 16 divisors (see below), whose sum is σ = 16898112. Its totient is φ = 5376000.

The previous prime is 10320641. The next prime is 10320647. The reversal of 10320645 is 54602301.

It is a happy number.

It is not a de Polignac number, because 10320645 - 2² = 10320641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320641) 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 15 ways as a sum of consecutive naturals, for example, 7356 + ... + 8645.

It is an arithmetic number, because the mean of its divisors is an integer number (1056132).

Almost surely, 2^10320645 is an apocalyptic number.

10320645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10320645 is a deficient number, since it is larger than the sum of its proper divisors (6577467).

10320645 is a wasteful number, since it uses less digits than its factorization.

10320645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16052.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 10320645 is about 3212.5760691383. The cubic root of 10320645 is about 217.7219823762.

Adding to 10320645 its reverse (54602301), we get a palindrome (64922946).

It can be divided in two parts, 10320 and 645, that multiplied together give a square (6656400 = 2580²).

The spelling of 10320645 in words is "ten million, three hundred twenty thousand, six hundred forty-five".