16425228 has 24 divisors (see below), whose sum is σ = 38667888. Its totient is φ = 5426176.

The previous prime is 16425221. The next prime is 16425229. The reversal of 16425228 is 82252461.

It is a super-2 number, since 2×16425228² = 539576229703968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16425195 and 16425204.

It is not an unprimeable number, because it can be changed into a prime (16425221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (1611162).

Almost surely, 2^16425228 is an apocalyptic number.

It is an amenable number.

16425228 is an abundant number, since it is smaller than the sum of its proper divisors (22242660).

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

16425228 is a wasteful number, since it uses less digits than its factorization.

16425228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12233 (or 12231 counting only the distinct ones).

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

The square root of 16425228 is about 4052.8049545963. The cubic root of 16425228 is about 254.1970281864.

Adding to 16425228 its reverse (82252461), we get a palindrome (98677689).

It can be divided in two parts, 16425 and 228, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 16425228 in words is "sixteen million, four hundred twenty-five thousand, two hundred twenty-eight".