28645294 has 8 divisors (see below), whose sum is σ = 43232040. Its totient is φ = 14234616.

The previous prime is 28645283. The next prime is 28645297. The reversal of 28645294 is 49254682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28645297) 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, 43609 + ... + 44260.

It is an arithmetic number, because the mean of its divisors is an integer number (5404005).

Almost surely, 2^28645294 is an apocalyptic number.

28645294 is a deficient number, since it is larger than the sum of its proper divisors (14586746).

28645294 is a wasteful number, since it uses less digits than its factorization.

28645294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88034.

The product of its digits is 138240, while the sum is 40.

The square root of 28645294 is about 5352.1298564216. The cubic root of 28645294 is about 305.9739323060.

The spelling of 28645294 in words is "twenty-eight million, six hundred forty-five thousand, two hundred ninety-four".