13212280 has 32 divisors (see below), whose sum is σ = 29957040. Its totient is φ = 5244160.

The previous prime is 13212263. The next prime is 13212289. The reversal of 13212280 is 8221231.

13212280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13212280³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212289) 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, 4275 + ... + 6685.

Almost surely, 2^13212280 is an apocalyptic number.

13212280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212280 is an abundant number, since it is smaller than the sum of its proper divisors (16744760).

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

13212280 is a wasteful number, since it uses less digits than its factorization.

13212280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13212280 is about 3634.8700114309. The cubic root of 13212280 is about 236.4064145274.

The spelling of 13212280 in words is "thirteen million, two hundred twelve thousand, two hundred eighty".