13072028 has 12 divisors (see below), whose sum is σ = 22929312. Its totient is φ = 6520800.

The previous prime is 13072021. The next prime is 13072067. The reversal of 13072028 is 82027031.

It is a junction number, because it is equal to n+sod(n) for n = 13071994 and 13072012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1748 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (1910776).

Almost surely, 2^13072028 is an apocalyptic number.

It is an amenable number.

13072028 is a deficient number, since it is larger than the sum of its proper divisors (9857284).

13072028 is a wasteful number, since it uses less digits than its factorization.

13072028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612 (or 7610 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 13072028 is about 3615.5259645036. The cubic root of 13072028 is about 235.5669305781.

Adding to 13072028 its reverse (82027031), we get a palindrome (95099059).

The spelling of 13072028 in words is "thirteen million, seventy-two thousand, twenty-eight".