13023780 has 96 divisors (see below), whose sum is σ = 45480960. Its totient is φ = 2705280.

The previous prime is 13023763. The next prime is 13023781. The reversal of 13023780 is 8732031.

It is a self number, because there is not a number n which added to its sum of digits gives 13023780.

It is not an unprimeable number, because it can be changed into a prime (13023781) 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 31 ways as a sum of consecutive naturals, for example, 3211 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (473760).

Almost surely, 2^13023780 is an apocalyptic number.

13023780 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 13023780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22740480).

13023780 is an abundant number, since it is smaller than the sum of its proper divisors (32457180).

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

13023780 is a wasteful number, since it uses less digits than its factorization.

13023780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2847 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13023780 is about 3608.8474614480. The cubic root of 13023780 is about 235.2767525665.

The spelling of 13023780 in words is "thirteen million, twenty-three thousand, seven hundred eighty".