5678428 has 24 divisors (see below), whose sum is σ = 11446400. Its totient is φ = 2414448.

The previous prime is 5678423. The next prime is 5678437. The reversal of 5678428 is 8248765.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678423) 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, 3163 + ... + 4621.

Almost surely, 2^5678428 is an apocalyptic number.

It is an amenable number.

5678428 is an abundant number, since it is smaller than the sum of its proper divisors (5767972).

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

5678428 is a wasteful number, since it uses less digits than its factorization.

5678428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1607 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 5678428 is about 2382.9452364668. The cubic root of 5678428 is about 178.4059664732.

The spelling of 5678428 in words is "five million, six hundred seventy-eight thousand, four hundred twenty-eight".