28619268 has 48 divisors (see below), whose sum is σ = 70465920. Its totient is φ = 9022464.

The previous prime is 28619267. The next prime is 28619273. The reversal of 28619268 is 86291682.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28619267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26238 + ... + 27306.

It is an arithmetic number, because the mean of its divisors is an integer number (1468040).

Almost surely, 2^28619268 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 28619268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35232960).

28619268 is an abundant number, since it is smaller than the sum of its proper divisors (41846652).

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

28619268 is a wasteful number, since it uses less digits than its factorization.

28619268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 28619268 is about 5349.6979353978. The cubic root of 28619268 is about 305.8812388897.

The spelling of 28619268 in words is "twenty-eight million, six hundred nineteen thousand, two hundred sixty-eight".