12249740 has 24 divisors (see below), whose sum is σ = 26053440. Its totient is φ = 4837248.

The previous prime is 12249739. The next prime is 12249749. The reversal of 12249740 is 4794221.

It is a super-2 number, since 2×12249740² = 300112260135200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12249749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2297 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (1085560).

Almost surely, 2^12249740 is an apocalyptic number.

12249740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12249740 is an abundant number, since it is smaller than the sum of its proper divisors (13803700).

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

12249740 is a wasteful number, since it uses less digits than its factorization.

12249740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841 (or 7839 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12249740 is about 3499.9628569458. The cubic root of 12249740 is about 230.5201836887.

The spelling of 12249740 in words is "twelve million, two hundred forty-nine thousand, seven hundred forty".