28540314 has 96 divisors (see below), whose sum is σ = 73120320. Its totient is φ = 7948800.

The previous prime is 28540313. The next prime is 28540319. The reversal of 28540314 is 41304582.

It is not an unprimeable number, because it can be changed into a prime (28540313) 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, 205257 + ... + 205395.

It is an arithmetic number, because the mean of its divisors is an integer number (761670).

Almost surely, 2^28540314 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28540314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36560160).

28540314 is an abundant number, since it is smaller than the sum of its proper divisors (44580006).

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

28540314 is a wasteful number, since it uses less digits than its factorization.

28540314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28540314 is about 5342.3135437748. The cubic root of 28540314 is about 305.5996944183.

Adding to 28540314 its reverse (41304582), we get a palindrome (69844896).

The spelling of 28540314 in words is "twenty-eight million, five hundred forty thousand, three hundred fourteen".