12549340 has 24 divisors (see below), whose sum is σ = 26853120. Its totient is φ = 4924608.

The previous prime is 12549331. The next prime is 12549343. The reversal of 12549340 is 4394521.

It is a junction number, because it is equal to n+sod(n) for n = 12549299 and 12549308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12549343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4860 + ... + 6979.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 2^12549340 is an apocalyptic number.

12549340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12549340 is an abundant number, since it is smaller than the sum of its proper divisors (14303780).

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

12549340 is a wasteful number, since it uses less digits than its factorization.

12549340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11901 (or 11899 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12549340 is about 3542.5047635818. The cubic root of 12549340 is about 232.3843954515.

The spelling of 12549340 in words is "twelve million, five hundred forty-nine thousand, three hundred forty".