13133380 has 24 divisors (see below), whose sum is σ = 29702232. Its totient is φ = 4849152.

The previous prime is 13133377. The next prime is 13133383. The reversal of 13133380 is 8333131.

It is an interprime number because it is at equal distance from previous prime (13133377) and next prime (13133383).

It can be written as a sum of positive squares in 4 ways, for example, as 1937664 + 11195716 = 1392^2 + 3346^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13133383) 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, 24997 + ... + 25516.

It is an arithmetic number, because the mean of its divisors is an integer number (1237593).

Almost surely, 2^13133380 is an apocalyptic number.

13133380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13133380 is an abundant number, since it is smaller than the sum of its proper divisors (16568852).

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

13133380 is a wasteful number, since it uses less digits than its factorization.

13133380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50535 (or 50533 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13133380 is about 3624.0005518763. Note that the first 3 decimals coincide. The cubic root of 13133380 is about 235.9348905900.

The spelling of 13133380 in words is "thirteen million, one hundred thirty-three thousand, three hundred eighty".