28154226 has 16 divisors (see below), whose sum is σ = 56856384. Its totient is φ = 9293424.

The previous prime is 28154197. The next prime is 28154237. The reversal of 28154226 is 62245182.

It is a junction number, because it is equal to n+sod(n) for n = 28154193 and 28154202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22161 + ... + 23396.

It is an arithmetic number, because the mean of its divisors is an integer number (3553524).

Almost surely, 2^28154226 is an apocalyptic number.

28154226 is an abundant number, since it is smaller than the sum of its proper divisors (28702158).

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

28154226 is a wasteful number, since it uses less digits than its factorization.

28154226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45665.

The product of its digits is 7680, while the sum is 30.

The square root of 28154226 is about 5306.0555971456. The cubic root of 28154226 is about 304.2154016446.

The spelling of 28154226 in words is "twenty-eight million, one hundred fifty-four thousand, two hundred twenty-six".