12240812 has 6 divisors (see below), whose sum is σ = 21421428. Its totient is φ = 6120404.

The previous prime is 12240803. The next prime is 12240841. The reversal of 12240812 is 21804221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530098 + ... + 1530105.

It is an arithmetic number, because the mean of its divisors is an integer number (3570238).

Almost surely, 2^12240812 is an apocalyptic number.

It is an amenable number.

12240812 is a deficient number, since it is larger than the sum of its proper divisors (9180616).

12240812 is a wasteful number, since it uses less digits than its factorization.

12240812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060207 (or 3060205 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 12240812 is about 3498.6871823585. The cubic root of 12240812 is about 230.4641665977.

The spelling of 12240812 in words is "twelve million, two hundred forty thousand, eight hundred twelve".