15228683028 has 144 divisors (see below), whose sum is σ = 43958992896. Its totient is φ = 4403635200.

The previous prime is 15228682993. The next prime is 15228683039. The reversal of 15228683028 is 82038682251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9156525 + ... + 9158187.

It is an arithmetic number, because the mean of its divisors is an integer number (305270784).

Almost surely, 2^15228683028 is an apocalyptic number.

15228683028 is a gapful number since it is divisible by the number (18) 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 15228683028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21979496448).

15228683028 is an abundant number, since it is smaller than the sum of its proper divisors (28730309868).

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

15228683028 is a wasteful number, since it uses less digits than its factorization.

15228683028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 15228683028 in words is "fifteen billion, two hundred twenty-eight million, six hundred eighty-three thousand, twenty-eight".