10520720 has 40 divisors (see below), whose sum is σ = 27956544. Its totient is φ = 3606912.

The previous prime is 10520711. The next prime is 10520743. The reversal of 10520720 is 2702501.

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

It is a super-2 number, since 2×10520720² = 221371098636800, which contains 22 as substring.

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, 8834 + ... + 9953.

Almost surely, 2^10520720 is an apocalyptic number.

10520720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10520720 is an abundant number, since it is smaller than the sum of its proper divisors (17435824).

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

10520720 is a wasteful number, since it uses less digits than its factorization.

10520720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18807 (or 18801 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 10520720 is about 3243.5659389012. The cubic root of 10520720 is about 219.1198998718.

The spelling of 10520720 in words is "ten million, five hundred twenty thousand, seven hundred twenty".