4227428 has 24 divisors (see below), whose sum is σ = 7673400. Its totient is φ = 2036480.

The previous prime is 4227427. The next prime is 4227451. The reversal of 4227428 is 8247224.

It can be written as a sum of positive squares in 4 ways, for example, as 73984 + 4153444 = 272^2 + 2038^2 .

It is a super-2 number, since 2×4227428² = 35742294990368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4227428.

It is not an unprimeable number, because it can be changed into a prime (4227427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24350 + ... + 24522.

It is an arithmetic number, because the mean of its divisors is an integer number (319725).

Almost surely, 2^4227428 is an apocalyptic number.

It is an amenable number.

4227428 is a deficient number, since it is larger than the sum of its proper divisors (3445972).

4227428 is a wasteful number, since it uses less digits than its factorization.

4227428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 365 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 4227428 is about 2056.0710104469. The cubic root of 4227428 is about 161.6933180752.

The spelling of 4227428 in words is "four million, two hundred twenty-seven thousand, four hundred twenty-eight".