10640916 has 144 divisors (see below), whose sum is σ = 33203520. Its totient is φ = 2920320.

The previous prime is 10640911. The next prime is 10640923. The reversal of 10640916 is 61904601.

10640916 is a `hidden beast` number, since 1 + 0 + 640 + 9 + 16 = 666.

It is a super-2 number, since 2×10640916² = 226458186638112, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10640916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10640911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200746 + ... + 200798.

It is an arithmetic number, because the mean of its divisors is an integer number (230580).

Almost surely, 2^10640916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10640916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16601760).

10640916 is an abundant number, since it is smaller than the sum of its proper divisors (22562604).

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

10640916 is a wasteful number, since it uses less digits than its factorization.

10640916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10640916 is about 3262.0416919469. The cubic root of 10640916 is about 219.9512012979.

The spelling of 10640916 in words is "ten million, six hundred forty thousand, nine hundred sixteen".