10500720 has 40 divisors (see below), whose sum is σ = 32552976. Its totient is φ = 2800128.

The previous prime is 10500703. The next prime is 10500739. The reversal of 10500720 is 2700501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10500720² = 220530241036800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10500720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21637 + ... + 22116.

Almost surely, 2^10500720 is an apocalyptic number.

10500720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10500720 is an abundant number, since it is smaller than the sum of its proper divisors (22052256).

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

10500720 is a wasteful number, since it uses less digits than its factorization.

10500720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43769 (or 43763 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 10500720 is about 3240.4814457114. The cubic root of 10500720 is about 218.9809620447.

The spelling of 10500720 in words is "ten million, five hundred thousand, seven hundred twenty".