13203270 has 64 divisors (see below), whose sum is σ = 35712000. Its totient is φ = 3470688.

The previous prime is 13203269. The next prime is 13203277. The reversal of 13203270 is 7230231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21021 + ... + 21639.

It is an arithmetic number, because the mean of its divisors is an integer number (558000).

Almost surely, 2^13203270 is an apocalyptic number.

13203270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17856000).

13203270 is an abundant number, since it is smaller than the sum of its proper divisors (22508730).

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

13203270 is a wasteful number, since it uses less digits than its factorization.

13203270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 13203270 is about 3633.6304159889. The cubic root of 13203270 is about 236.3526638711.

The spelling of 13203270 in words is "thirteen million, two hundred three thousand, two hundred seventy".