28214298 has 48 divisors (see below), whose sum is σ = 72941760. Its totient is φ = 8060472.

The previous prime is 28214267. The next prime is 28214299. The reversal of 28214298 is 89241282.

It is a super-2 number, since 2×28214298² = 1592093223265608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28214299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2686 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (1519620).

Almost surely, 2^28214298 is an apocalyptic number.

28214298 is an abundant number, since it is smaller than the sum of its proper divisors (44727462).

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

28214298 is a wasteful number, since it uses less digits than its factorization.

28214298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10688 (or 10675 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 28214298 is about 5311.7132829248. The cubic root of 28214298 is about 304.4316136556.

The spelling of 28214298 in words is "twenty-eight million, two hundred fourteen thousand, two hundred ninety-eight".