28774254 has 8 divisors (see below), whose sum is σ = 57548520. Its totient is φ = 9591416.

The previous prime is 28774243. The next prime is 28774259. The reversal of 28774254 is 45247782.

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

28774254 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28774259) 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, 2397849 + ... + 2397860.

It is an arithmetic number, because the mean of its divisors is an integer number (7193565).

Almost surely, 2^28774254 is an apocalyptic number.

28774254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28774254 is a wasteful number, since it uses less digits than its factorization.

28774254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795714.

The product of its digits is 125440, while the sum is 39.

The square root of 28774254 is about 5364.1638677430. The cubic root of 28774254 is about 306.4324058988.

The spelling of 28774254 in words is "twenty-eight million, seven hundred seventy-four thousand, two hundred fifty-four".