28454226 has 32 divisors (see below), whose sum is σ = 61000128. Its totient is φ = 8816640.

The previous prime is 28454213. The next prime is 28454227. The reversal of 28454226 is 62245482.

It is not an unprimeable number, because it can be changed into a prime (28454227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6786 + ... + 10146.

It is an arithmetic number, because the mean of its divisors is an integer number (1906254).

Almost surely, 2^28454226 is an apocalyptic number.

28454226 is an abundant number, since it is smaller than the sum of its proper divisors (32545902).

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

28454226 is a wasteful number, since it uses less digits than its factorization.

28454226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466.

The product of its digits is 30720, while the sum is 33.

The square root of 28454226 is about 5334.2502753433. The cubic root of 28454226 is about 305.2921182310.

It can be divided in two parts, 28454 and 226, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 28454226 in words is "twenty-eight million, four hundred fifty-four thousand, two hundred twenty-six".