12732270 has 32 divisors (see below), whose sum is σ = 30741120. Its totient is φ = 3374880.

The previous prime is 12732241. The next prime is 12732277. The reversal of 12732270 is 7223721.

12732270 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12732270² = 324221398705800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12732270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12732277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185 + ... + 6555.

It is an arithmetic number, because the mean of its divisors is an integer number (960660).

Almost surely, 2^12732270 is an apocalyptic number.

12732270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12732270 is an abundant number, since it is smaller than the sum of its proper divisors (18008850).

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

12732270 is a wasteful number, since it uses less digits than its factorization.

With its successor (12732271) it forms an eRAP, since the sums of their prime factors are consecutive (2560 and 2561).

12732270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 12732270 is about 3568.2306539796. The cubic root of 12732270 is about 233.5080980949.

Adding to 12732270 its reverse (7223721), we get a palindrome (19955991).

The spelling of 12732270 in words is "twelve million, seven hundred thirty-two thousand, two hundred seventy".