10309812 has 24 divisors (see below), whose sum is σ = 24157056. Its totient is φ = 3422208.

The previous prime is 10309807. The next prime is 10309813. The reversal of 10309812 is 21890301.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10309813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (1006544).

Almost surely, 2^10309812 is an apocalyptic number.

10309812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10309812 is an abundant number, since it is smaller than the sum of its proper divisors (13847244).

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

10309812 is a wasteful number, since it uses less digits than its factorization.

10309812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607 (or 3605 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 10309812 is about 3210.8895963580. The cubic root of 10309812 is about 217.6457788721.

The spelling of 10309812 in words is "ten million, three hundred nine thousand, eight hundred twelve".