13212774 has 64 divisors (see below), whose sum is σ = 32011200. Its totient is φ = 4022784.

The previous prime is 13212767. The next prime is 13212799. The reversal of 13212774 is 47721231.

It is a happy number.

13212774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33772 + ... + 34160.

It is an arithmetic number, because the mean of its divisors is an integer number (500175).

Almost surely, 2^13212774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16005600).

13212774 is an abundant number, since it is smaller than the sum of its proper divisors (18798426).

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

13212774 is a wasteful number, since it uses less digits than its factorization.

13212774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 13212774 is about 3634.9379637072. The cubic root of 13212774 is about 236.4093608600.

It can be divided in two parts, 1321 and 2774, that added together give a triangular number (4095 = T₉₀).

The spelling of 13212774 in words is "thirteen million, two hundred twelve thousand, seven hundred seventy-four".