12273420 has 24 divisors (see below), whose sum is σ = 34365744. Its totient is φ = 3272896.

The previous prime is 12273403. The next prime is 12273433. The reversal of 12273420 is 2437221.

12273420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102219 + ... + 102338.

It is an arithmetic number, because the mean of its divisors is an integer number (1431906).

Almost surely, 2^12273420 is an apocalyptic number.

12273420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12273420 is an abundant number, since it is smaller than the sum of its proper divisors (22092324).

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

12273420 is a wasteful number, since it uses less digits than its factorization.

12273420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204569 (or 204567 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12273420 is about 3503.3441166976. The cubic root of 12273420 is about 230.6686277728.

The spelling of 12273420 in words is "twelve million, two hundred seventy-three thousand, four hundred twenty".