4397428 has 12 divisors (see below), whose sum is σ = 8794912. Its totient is φ = 1884600.

The previous prime is 4397399. The next prime is 4397431. The reversal of 4397428 is 8247934.

It is a happy number.

4397428 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78498 + ... + 78553.

Almost surely, 2^4397428 is an apocalyptic number.

It is an amenable number.

4397428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4397428 is a wasteful number, since it uses less digits than its factorization.

4397428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157062 (or 157060 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 4397428 is about 2097.0045302765. The cubic root of 4397428 is about 163.8323191952.

The spelling of 4397428 in words is "four million, three hundred ninety-seven thousand, four hundred twenty-eight".