13253780 has 12 divisors (see below), whose sum is σ = 27832980. Its totient is φ = 5301504.

The previous prime is 13253767. The next prime is 13253803. The reversal of 13253780 is 8735231.

It can be written as a sum of positive squares in 2 ways, for example, as 7043716 + 6210064 = 2654^2 + 2492^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 331325 + ... + 331364.

It is an arithmetic number, because the mean of its divisors is an integer number (2319415).

Almost surely, 2^13253780 is an apocalyptic number.

13253780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13253780 is an abundant number, since it is smaller than the sum of its proper divisors (14579200).

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

13253780 is a wasteful number, since it uses less digits than its factorization.

13253780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662698 (or 662696 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13253780 is about 3640.5741305459. The cubic root of 13253780 is about 236.6536747039.

The spelling of 13253780 in words is "thirteen million, two hundred fifty-three thousand, seven hundred eighty".