28490514 has 32 divisors (see below), whose sum is σ = 64036224. Its totient is φ = 8384640.

The previous prime is 28490509. The next prime is 28490533. The reversal of 28490514 is 41509482.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6147 + ... + 9734.

It is an arithmetic number, because the mean of its divisors is an integer number (2001132).

Almost surely, 2^28490514 is an apocalyptic number.

28490514 is an abundant number, since it is smaller than the sum of its proper divisors (35545710).

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

28490514 is a wasteful number, since it uses less digits than its factorization.

28490514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15922.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28490514 is about 5337.6506067745. The cubic root of 28490514 is about 305.4218439436.

Adding to 28490514 its reverse (41509482), we get a palindrome (69999996).

The spelling of 28490514 in words is "twenty-eight million, four hundred ninety thousand, five hundred fourteen".