12772340 has 36 divisors (see below), whose sum is σ = 31203396. Its totient is φ = 4378752.

The previous prime is 12772339. The next prime is 12772349. The reversal of 12772340 is 4327721.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 6492304 = 2506^2 + 2548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772349) 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 11 ways as a sum of consecutive naturals, for example, 5537 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (866761).

Almost surely, 2^12772340 is an apocalyptic number.

12772340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12772340 is an abundant number, since it is smaller than the sum of its proper divisors (18431056).

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

12772340 is a wasteful number, since it uses less digits than its factorization.

12772340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056 (or 13047 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 12772340 is about 3573.8410708928. The cubic root of 12772340 is about 233.7528010188.

The spelling of 12772340 in words is "twelve million, seven hundred seventy-two thousand, three hundred forty".