12782230 has 16 divisors (see below), whose sum is σ = 23750784. Its totient is φ = 4947840.

The previous prime is 12782219. The next prime is 12782233. The reversal of 12782230 is 3228721.

It is a junction number, because it is equal to n+sod(n) for n = 12782195 and 12782204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20307 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (1484424).

Almost surely, 2^12782230 is an apocalyptic number.

12782230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12782230 is a deficient number, since it is larger than the sum of its proper divisors (10968554).

12782230 is a wasteful number, since it uses less digits than its factorization.

12782230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41271.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12782230 is about 3575.2244684775. The cubic root of 12782230 is about 233.8131193514.

The spelling of 12782230 in words is "twelve million, seven hundred eighty-two thousand, two hundred thirty".