28227430 has 48 divisors (see below), whose sum is σ = 64490256. Its totient is φ = 8796480.

The previous prime is 28227413. The next prime is 28227439. The reversal of 28227430 is 3472282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28227439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2772 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (1343547).

Almost surely, 2^28227430 is an apocalyptic number.

28227430 is an abundant number, since it is smaller than the sum of its proper divisors (36262826).

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

28227430 is a wasteful number, since it uses less digits than its factorization.

28227430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 28227430 is about 5312.9492751202. The cubic root of 28227430 is about 304.4788376538.

The spelling of 28227430 in words is "twenty-eight million, two hundred twenty-seven thousand, four hundred thirty".