28254518 has 8 divisors (see below), whose sum is σ = 42414840. Its totient is φ = 14116240.

The previous prime is 28254517. The next prime is 28254553. The reversal of 28254518 is 81545282.

It is a happy number.

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 (28254517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1808 + ... + 7731.

It is an arithmetic number, because the mean of its divisors is an integer number (5301855).

Almost surely, 2^28254518 is an apocalyptic number.

28254518 is a deficient number, since it is larger than the sum of its proper divisors (14160322).

28254518 is a wasteful number, since it uses less digits than its factorization.

28254518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022.

The product of its digits is 25600, while the sum is 35.

The square root of 28254518 is about 5315.4979070638. The cubic root of 28254518 is about 304.5762025915.

The spelling of 28254518 in words is "twenty-eight million, two hundred fifty-four thousand, five hundred eighteen".