12280394 has 16 divisors (see below), whose sum is σ = 21271488. Its totient is φ = 5208192.

The previous prime is 12280379. The next prime is 12280399. The reversal of 12280394 is 49308221.

12280394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12280399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3164 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (1329468).

Almost surely, 2^12280394 is an apocalyptic number.

12280394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12280394 is a deficient number, since it is larger than the sum of its proper divisors (8991094).

12280394 is an equidigital number, since it uses as much as digits as its factorization.

12280394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9149.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12280394 is about 3504.3393100555. The cubic root of 12280394 is about 230.7123096591.

The spelling of 12280394 in words is "twelve million, two hundred eighty thousand, three hundred ninety-four".