10509880 has 16 divisors (see below), whose sum is σ = 23647320. Its totient is φ = 4203936.

The previous prime is 10509871. The next prime is 10509901. The reversal of 10509880 is 8890501.

It is a super-2 number, since 2×10509880² = 220915155228800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131334 + ... + 131413.

Almost surely, 2^10509880 is an apocalyptic number.

10509880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10509880 is an abundant number, since it is smaller than the sum of its proper divisors (13137440).

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

10509880 is a wasteful number, since it uses less digits than its factorization.

10509880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262758 (or 262754 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 10509880 is about 3241.8945078457. The cubic root of 10509880 is about 219.0446174462.

The spelling of 10509880 in words is "ten million, five hundred nine thousand, eight hundred eighty".