12273480 has 96 divisors (see below), whose sum is σ = 40397760. Its totient is φ = 3231360.

The previous prime is 12273479. The next prime is 12273497. The reversal of 12273480 is 8437221.

12273480 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12273480² = 301276622620800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36915 + ... + 37245.

It is an arithmetic number, because the mean of its divisors is an integer number (420810).

Almost surely, 2^12273480 is an apocalyptic number.

12273480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20198880).

12273480 is an abundant number, since it is smaller than the sum of its proper divisors (28124280).

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

12273480 is a wasteful number, since it uses less digits than its factorization.

12273480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12273480 is about 3503.3526799339. The cubic root of 12273480 is about 230.6690036554.

The spelling of 12273480 in words is "twelve million, two hundred seventy-three thousand, four hundred eighty".