10649520 has 120 divisors (see below), whose sum is σ = 40893216. Its totient is φ = 2433024.

The previous prime is 10649501. The next prime is 10649567. The reversal of 10649520 is 2594601.

10649520 is a `hidden beast` number, since 10 + 649 + 5 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×10649520² = 226824552460800, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3984 + ... + 6096.

Almost surely, 2^10649520 is an apocalyptic number.

10649520 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 10649520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20446608).

10649520 is an abundant number, since it is smaller than the sum of its proper divisors (30243696).

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

10649520 is a wasteful number, since it uses less digits than its factorization.

10649520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 10649520 is about 3263.3602314179. The cubic root of 10649520 is about 220.0104678215.

The spelling of 10649520 in words is "ten million, six hundred forty-nine thousand, five hundred twenty".