13428072 has 128 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 3754944.

The previous prime is 13428061. The next prime is 13428089. The reversal of 13428072 is 27082431.

13428072 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 Harshad number since it is a multiple of its sum of digits (27).

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, 125443 + ... + 125549.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^13428072 is an apocalyptic number.

13428072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13428072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

13428072 is an abundant number, since it is smaller than the sum of its proper divisors (30117528).

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

13428072 is a wasteful number, since it uses less digits than its factorization.

13428072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13428072 is about 3664.4333804833. The cubic root of 13428072 is about 237.6865208826.

The spelling of 13428072 in words is "thirteen million, four hundred twenty-eight thousand, seventy-two".