12294540 has 72 divisors (see below), whose sum is σ = 37608480. Its totient is φ = 3250944.

The previous prime is 12294523. The next prime is 12294551. The reversal of 12294540 is 4549221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29856 + ... + 30264.

It is an arithmetic number, because the mean of its divisors is an integer number (522340).

Almost surely, 2^12294540 is an apocalyptic number.

12294540 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 12294540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18804240).

12294540 is an abundant number, since it is smaller than the sum of its proper divisors (25313940).

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

12294540 is a wasteful number, since it uses less digits than its factorization.

12294540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12294540 is about 3506.3570839263. The cubic root of 12294540 is about 230.8008628434.

The spelling of 12294540 in words is "twelve million, two hundred ninety-four thousand, five hundred forty".