10645440 has 112 divisors (see below), whose sum is σ = 36441888. Its totient is φ = 2617344.

The previous prime is 10645423. The next prime is 10645441. The reversal of 10645440 is 4454601.

It is a super-2 number, since 2×10645440² = 226650785587200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10645440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12054 + ... + 12906.

It is an arithmetic number, because the mean of its divisors is an integer number (325374).

Almost surely, 2^10645440 is an apocalyptic number.

10645440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10645440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18220944).

10645440 is an abundant number, since it is smaller than the sum of its proper divisors (25796448).

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

10645440 is a wasteful number, since it uses less digits than its factorization.

10645440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 10645440 is about 3262.7350490041. The cubic root of 10645440 is about 219.9823677329.

The spelling of 10645440 in words is "ten million, six hundred forty-five thousand, four hundred forty".