13305772 has 6 divisors (see below), whose sum is σ = 23285108. Its totient is φ = 6652884.

The previous prime is 13305749. The next prime is 13305779. The reversal of 13305772 is 27750331.

13305772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13305772.

It is not an unprimeable number, because it can be changed into a prime (13305779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1663218 + ... + 1663225.

Almost surely, 2^13305772 is an apocalyptic number.

It is an amenable number.

13305772 is a deficient number, since it is larger than the sum of its proper divisors (9979336).

13305772 is a wasteful number, since it uses less digits than its factorization.

13305772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326447 (or 3326445 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 13305772 is about 3647.7077733832. The cubic root of 13305772 is about 236.9627197202.

The spelling of 13305772 in words is "thirteen million, three hundred five thousand, seven hundred seventy-two".