13022780 has 12 divisors (see below), whose sum is σ = 27347880. Its totient is φ = 5209104.

The previous prime is 13022777. The next prime is 13022803. The reversal of 13022780 is 8722031.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 325550 + ... + 325589.

It is an arithmetic number, because the mean of its divisors is an integer number (2278990).

Almost surely, 2^13022780 is an apocalyptic number.

13022780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13022780 is an abundant number, since it is smaller than the sum of its proper divisors (14325100).

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

13022780 is a wasteful number, since it uses less digits than its factorization.

13022780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651148 (or 651146 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 13022780 is about 3608.7089104000. The cubic root of 13022780 is about 235.2707306902.

The spelling of 13022780 in words is "thirteen million, twenty-two thousand, seven hundred eighty".