13770328 has 32 divisors (see below), whose sum is σ = 30335760. Its totient is φ = 5777280.

The previous prime is 13770311. The next prime is 13770329. The reversal of 13770328 is 82307731.

It is a self number, because there is not a number n which added to its sum of digits gives 13770328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13770329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4875 + ... + 7162.

Almost surely, 2^13770328 is an apocalyptic number.

It is an amenable number.

13770328 is an abundant number, since it is smaller than the sum of its proper divisors (16565432).

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

13770328 is a wasteful number, since it uses less digits than its factorization.

13770328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12067 (or 12063 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 13770328 is about 3710.8392581733. The cubic root of 13770328 is about 239.6889953059.

It can be divided in two parts, 137703 and 28, that added together give a palindrome (137731).

The spelling of 13770328 in words is "thirteen million, seven hundred seventy thousand, three hundred twenty-eight".