13283780 has 24 divisors (see below), whose sum is σ = 27964440. Its totient is φ = 5300480.

The previous prime is 13283759. The next prime is 13283789. The reversal of 13283780 is 8738231.

It can be written as a sum of positive squares in 4 ways, for example, as 2208196 + 11075584 = 1486^2 + 3328^2 .

It is a super-2 number, since 2×13283780² = 352917622176800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13283789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15770 + ... + 16590.

It is an arithmetic number, because the mean of its divisors is an integer number (1165185).

Almost surely, 2^13283780 is an apocalyptic number.

13283780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13283780 is an abundant number, since it is smaller than the sum of its proper divisors (14680660).

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

13283780 is a wasteful number, since it uses less digits than its factorization.

13283780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 13283780 is about 3644.6920308855. The cubic root of 13283780 is about 236.8320957606.

The spelling of 13283780 in words is "thirteen million, two hundred eighty-three thousand, seven hundred eighty".