10309880 has 32 divisors (see below), whose sum is σ = 26511840. Its totient is φ = 3534720.

The previous prime is 10309879. The next prime is 10309883. The reversal of 10309880 is 8890301.

It is a happy number.

10309880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10309880² = 212587251228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10309883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18131 + ... + 18690.

It is an arithmetic number, because the mean of its divisors is an integer number (828495).

Almost surely, 2^10309880 is an apocalyptic number.

10309880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10309880 is an abundant number, since it is smaller than the sum of its proper divisors (16201960).

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

10309880 is a wasteful number, since it uses less digits than its factorization.

10309880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36839 (or 36835 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10309880 is about 3210.9001853063. The cubic root of 10309880 is about 217.6462573768.

The spelling of 10309880 in words is "ten million, three hundred nine thousand, eight hundred eighty".