13229140 has 24 divisors (see below), whose sum is σ = 28990080. Its totient is φ = 5061408.

The previous prime is 13229129. The next prime is 13229143. The reversal of 13229140 is 4192231.

13229140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13229143) 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, 13920 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (1207920).

Almost surely, 2^13229140 is an apocalyptic number.

13229140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13229140 is an abundant number, since it is smaller than the sum of its proper divisors (15760940).

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

13229140 is a wasteful number, since it uses less digits than its factorization.

13229140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28791 (or 28789 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13229140 is about 3637.1884746326. The cubic root of 13229140 is about 236.5069300563.

The spelling of 13229140 in words is "thirteen million, two hundred twenty-nine thousand, one hundred forty".