42253228 has 12 divisors (see below), whose sum is σ = 78292872. Its totient is φ = 19883840.

The previous prime is 42253213. The next prime is 42253241. The reversal of 42253228 is 82235224.

It is a happy number.

42253228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42253196 and 42253205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310618 + ... + 310753.

It is an arithmetic number, because the mean of its divisors is an integer number (6524406).

Almost surely, 2^42253228 is an apocalyptic number.

It is an amenable number.

42253228 is a deficient number, since it is larger than the sum of its proper divisors (36039644).

42253228 is a wasteful number, since it uses less digits than its factorization.

42253228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621392 (or 621390 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 42253228 is about 6500.2483029497. The cubic root of 42253228 is about 348.2998582535.

The spelling of 42253228 in words is "forty-two million, two hundred fifty-three thousand, two hundred twenty-eight".