4402428 has 12 divisors (see below), whose sum is σ = 10272360. Its totient is φ = 1467472.

The previous prime is 4402423. The next prime is 4402429. The reversal of 4402428 is 8242044.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4402398 and 4402407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183423 + ... + 183446.

It is an arithmetic number, because the mean of its divisors is an integer number (856030).

Almost surely, 2^4402428 is an apocalyptic number.

It is an amenable number.

4402428 is an abundant number, since it is smaller than the sum of its proper divisors (5869932).

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

4402428 is a wasteful number, since it uses less digits than its factorization.

4402428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366876 (or 366874 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4402428 is about 2098.1963683126. The cubic root of 4402428 is about 163.8943896693.

The spelling of 4402428 in words is "four million, four hundred two thousand, four hundred twenty-eight".