28274718 has 8 divisors (see below), whose sum is σ = 56549448. Its totient is φ = 9424904.

The previous prime is 28274713. The next prime is 28274761. The reversal of 28274718 is 81747282.

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

28274718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28274711) 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, 2356221 + ... + 2356232.

It is an arithmetic number, because the mean of its divisors is an integer number (7068681).

Almost surely, 2^28274718 is an apocalyptic number.

28274718 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.

28274718 is a wasteful number, since it uses less digits than its factorization.

28274718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712458.

The product of its digits is 50176, while the sum is 39.

The square root of 28274718 is about 5317.3976717940. The cubic root of 28274718 is about 304.6487688467.

The spelling of 28274718 in words is "twenty-eight million, two hundred seventy-four thousand, seven hundred eighteen".