10645650 has 72 divisors (see below), whose sum is σ = 29349684. Its totient is φ = 2764800.

The previous prime is 10645637. The next prime is 10645673. The reversal of 10645650 is 5654601.

It is a happy number.

10645650 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 5 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4549689 + 6095961 = 2133^2 + 2469^2 .

It is a super-2 number, since 2×10645650² = 226659727845000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18162 + ... + 18738.

Almost surely, 2^10645650 is an apocalyptic number.

10645650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10645650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14674842).

10645650 is an abundant number, since it is smaller than the sum of its proper divisors (18704034).

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

10645650 is a wasteful number, since it uses less digits than its factorization.

10645650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 10645650 is about 3262.7672304349. The cubic root of 10645650 is about 219.9838142362.

The spelling of 10645650 in words is "ten million, six hundred forty-five thousand, six hundred fifty".