28914274 has 4 divisors (see below), whose sum is σ = 43371414. Its totient is φ = 14457136.

The previous prime is 28914269. The next prime is 28914283. The reversal of 28914274 is 47241982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25938649 + 2975625 = 5093^2 + 1725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7228567 + ... + 7228570.

Almost surely, 2^28914274 is an apocalyptic number.

28914274 is a deficient number, since it is larger than the sum of its proper divisors (14457140).

28914274 is a wasteful number, since it uses less digits than its factorization.

28914274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14457139.

The product of its digits is 32256, while the sum is 37.

The square root of 28914274 is about 5377.1994569664. The cubic root of 28914274 is about 306.9286510975.

The spelling of 28914274 in words is "twenty-eight million, nine hundred fourteen thousand, two hundred seventy-four".