12770880 has 112 divisors (see below), whose sum is σ = 41477184. Its totient is φ = 3328000.

The previous prime is 12770861. The next prime is 12770881. The reversal of 12770880 is 8807721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50755 + ... + 51005.

It is an arithmetic number, because the mean of its divisors is an integer number (370332).

Almost surely, 2^12770880 is an apocalyptic number.

12770880 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 12770880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20738592).

12770880 is an abundant number, since it is smaller than the sum of its proper divisors (28706304).

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

12770880 is a wasteful number, since it uses less digits than its factorization.

12770880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 12770880 is about 3573.6368030341. The cubic root of 12770880 is about 233.7438939562.

The spelling of 12770880 in words is "twelve million, seven hundred seventy thousand, eight hundred eighty".