12309084 has 30 divisors (see below), whose sum is σ = 32179224. Its totient is φ = 4102920.

The previous prime is 12309083. The next prime is 12309097. The reversal of 12309084 is 48090321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309083) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18672 + ... + 19319.

Almost surely, 2^12309084 is an apocalyptic number.

It is an amenable number.

12309084 is an abundant number, since it is smaller than the sum of its proper divisors (19870140).

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

12309084 is a wasteful number, since it uses less digits than its factorization.

12309084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38007 (or 37996 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12309084 is about 3508.4304182925. The cubic root of 12309084 is about 230.8918366950.

The spelling of 12309084 in words is "twelve million, three hundred nine thousand, eighty-four".