12764280 has 64 divisors (see below), whose sum is σ = 40551840. Its totient is φ = 3203072.

The previous prime is 12764261. The next prime is 12764293. The reversal of 12764280 is 8246721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089 + ... + 5168.

Almost surely, 2^12764280 is an apocalyptic number.

12764280 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 12764280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20275920).

12764280 is an abundant number, since it is smaller than the sum of its proper divisors (27787560).

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

12764280 is a wasteful number, since it uses less digits than its factorization.

12764280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6288 (or 6284 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12764280 is about 3572.7132546567. The cubic root of 12764280 is about 233.7036206800.

The spelling of 12764280 in words is "twelve million, seven hundred sixty-four thousand, two hundred eighty".