13142928 has 40 divisors (see below), whose sum is σ = 34301376. Its totient is φ = 4336000.

The previous prime is 13142923. The next prime is 13142929. The reversal of 13142928 is 82924131.

It is a junction number, because it is equal to n+sod(n) for n = 13142895 and 13142904.

It is not an unprimeable number, because it can be changed into a prime (13142923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3493 + ... + 6203.

Almost surely, 2^13142928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13142928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17150688).

13142928 is an abundant number, since it is smaller than the sum of its proper divisors (21158448).

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

13142928 is a wasteful number, since it uses less digits than its factorization.

13142928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823 (or 2817 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 13142928 is about 3625.3176412557. The cubic root of 13142928 is about 235.9920518246.

The spelling of 13142928 in words is "thirteen million, one hundred forty-two thousand, nine hundred twenty-eight".