28965450 has 96 divisors (see below), whose sum is σ = 78369984. Its totient is φ = 7050240.

The previous prime is 28965449. The next prime is 28965457. The reversal of 28965450 is 5456982.

It is a junction number, because it is equal to n+sod(n) for n = 28965399 and 28965408.

It is not an unprimeable number, because it can be changed into a prime (28965457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94197 + ... + 94503.

It is an arithmetic number, because the mean of its divisors is an integer number (816354).

Almost surely, 2^28965450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28965450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39184992).

28965450 is an abundant number, since it is smaller than the sum of its proper divisors (49404534).

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

28965450 is a wasteful number, since it uses less digits than its factorization.

28965450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 28965450 is about 5381.9559641454. The cubic root of 28965450 is about 307.1096242598.

The spelling of 28965450 in words is "twenty-eight million, nine hundred sixty-five thousand, four hundred fifty".