28480226 has 16 divisors (see below), whose sum is σ = 43579296. Its totient is φ = 13956096.

The previous prime is 28480213. The next prime is 28480237. The reversal of 28480226 is 62208482.

It is a happy number.

It is a super-2 number, since 2×28480226² = 1622246546022152, which contains 22 as substring.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 28480192 and 28480201.

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, 34025 + ... + 34851.

It is an arithmetic number, because the mean of its divisors is an integer number (2723706).

Almost surely, 2^28480226 is an apocalyptic number.

28480226 is a deficient number, since it is larger than the sum of its proper divisors (15099070).

28480226 is a wasteful number, since it uses less digits than its factorization.

28480226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 28480226 is about 5336.6867998787. The cubic root of 28480226 is about 305.3850766390.

The spelling of 28480226 in words is "twenty-eight million, four hundred eighty thousand, two hundred twenty-six".