28185314 has 8 divisors (see below), whose sum is σ = 42355548. Its totient is φ = 14066800.

The previous prime is 28185299. The next prime is 28185317. The reversal of 28185314 is 41358182.

It can be written as a sum of positive squares in 2 ways, for example, as 27384289 + 801025 = 5233^2 + 895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28185317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11537 + ... + 13764.

Almost surely, 2^28185314 is an apocalyptic number.

28185314 is a deficient number, since it is larger than the sum of its proper divisors (14170234).

28185314 is a wasteful number, since it uses less digits than its factorization.

28185314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25860.

The product of its digits is 7680, while the sum is 32.

The square root of 28185314 is about 5308.9842719677. The cubic root of 28185314 is about 304.3273323787.

The spelling of 28185314 in words is "twenty-eight million, one hundred eighty-five thousand, three hundred fourteen".