4219428 has 24 divisors (see below), whose sum is σ = 9892960. Its totient is φ = 1399680.

The previous prime is 4219427. The next prime is 4219429. The reversal of 4219428 is 8249124.

It is an interprime number because it is at equal distance from previous prime (4219427) and next prime (4219429).

It is a junction number, because it is equal to n+sod(n) for n = 4219395 and 4219404.

It is not an unprimeable number, because it can be changed into a prime (4219427) 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, 2163 + ... + 3621.

Almost surely, 2^4219428 is an apocalyptic number.

It is an amenable number.

4219428 is an abundant number, since it is smaller than the sum of its proper divisors (5673532).

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

4219428 is a wasteful number, since it uses less digits than its factorization.

4219428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1705 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 4219428 is about 2054.1246310777. The cubic root of 4219428 is about 161.5912573285.

The spelling of 4219428 in words is "four million, two hundred nineteen thousand, four hundred twenty-eight".