10644380 has 24 divisors (see below), whose sum is σ = 23668848. Its totient is φ = 4007168.

The previous prime is 10644373. The next prime is 10644383. The reversal of 10644380 is 8344601.

10644380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10644380² = 226605651168800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644383) 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, 15314 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (986202).

Almost surely, 2^10644380 is an apocalyptic number.

10644380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10644380 is an abundant number, since it is smaller than the sum of its proper divisors (13024468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10644380 is a wasteful number, since it uses less digits than its factorization.

10644380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31333 (or 31331 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 10644380 is about 3262.5726045561. The cubic root of 10644380 is about 219.9750660447.

Adding to 10644380 its reverse (8344601), we get a palindrome (18988981).

The spelling of 10644380 in words is "ten million, six hundred forty-four thousand, three hundred eighty".