10509928 has 32 divisors (see below), whose sum is σ = 23153760. Its totient is φ = 4409280.

The previous prime is 10509913. The next prime is 10509937. The reversal of 10509928 is 82990501.

It is a super-2 number, since 2×10509928² = 220917173130368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10509893 and 10509902.

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, 3450 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (723555).

Almost surely, 2^10509928 is an apocalyptic number.

It is an amenable number.

10509928 is an abundant number, since it is smaller than the sum of its proper divisors (12643832).

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

10509928 is a wasteful number, since it uses less digits than its factorization.

10509928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9217 (or 9213 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 10509928 is about 3241.9019109159. The cubic root of 10509928 is about 219.0449509142.

The spelling of 10509928 in words is "ten million, five hundred nine thousand, nine hundred twenty-eight".