10665830 has 24 divisors (see below), whose sum is σ = 22333968. Its totient is φ = 3656688.

The previous prime is 10665827. The next prime is 10665847. The reversal of 10665830 is 3856601.

10665830 = 193² + 194² + ... + 339².

It is a super-2 number, since 2×10665830² = 227519859177800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10665793 and 10665802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10394 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (930582).

Almost surely, 2^10665830 is an apocalyptic number.

10665830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10665830 is an abundant number, since it is smaller than the sum of its proper divisors (11668138).

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

10665830 is a wasteful number, since it uses less digits than its factorization.

10665830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21788 (or 21781 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 10665830 is about 3265.8582332979. The cubic root of 10665830 is about 220.1227276665.

The spelling of 10665830 in words is "ten million, six hundred sixty-five thousand, eight hundred thirty".