28199354 has 12 divisors (see below), whose sum is σ = 42918522. Its totient is φ = 13896120.

The previous prime is 28199341. The next prime is 28199377. The reversal of 28199354 is 45399182.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 6901129 = 4615^2 + 2627^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8684 + ... + 11480.

Almost surely, 2^28199354 is an apocalyptic number.

28199354 is a deficient number, since it is larger than the sum of its proper divisors (14719168).

28199354 is an equidigital number, since it uses as much as digits as its factorization.

28199354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941 (or 2870 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 28199354 is about 5310.3063941735. The cubic root of 28199354 is about 304.3778556935.

The spelling of 28199354 in words is "twenty-eight million, one hundred ninety-nine thousand, three hundred fifty-four".