28670194 has 24 divisors (see below), whose sum is σ = 52972380. Its totient is φ = 11563776.

The previous prime is 28670189. The next prime is 28670197. The reversal of 28670194 is 49107682.

It can be written as a sum of positive squares in 2 ways, for example, as 28227969 + 442225 = 5313^2 + 665^2 .

It is not an unprimeable number, because it can be changed into a prime (28670197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6939 + ... + 10270.

Almost surely, 2^28670194 is an apocalyptic number.

28670194 is a deficient number, since it is larger than the sum of its proper divisors (24302186).

28670194 is a wasteful number, since it uses less digits than its factorization.

28670194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242 (or 17235 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 28670194 is about 5354.4555278758. The cubic root of 28670194 is about 306.0625628555.

The spelling of 28670194 in words is "twenty-eight million, six hundred seventy thousand, one hundred ninety-four".