12777044 has 72 divisors (see below), whose sum is σ = 28344960. Its totient is φ = 5007744.

The previous prime is 12777043. The next prime is 12777049. The reversal of 12777044 is 44077721.

12777044 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12777044 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 12777044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12777041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174992 + ... + 175064.

It is an arithmetic number, because the mean of its divisors is an integer number (393680).

Almost surely, 2^12777044 is an apocalyptic number.

12777044 is a gapful number since it is divisible by the number (14) 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 12777044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14172480).

12777044 is an abundant number, since it is smaller than the sum of its proper divisors (15567916).

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

12777044 is a wasteful number, since it uses less digits than its factorization.

12777044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 12777044 is about 3574.4991257517. The cubic root of 12777044 is about 233.7814942265.

The spelling of 12777044 in words is "twelve million, seven hundred seventy-seven thousand, forty-four".