4989428 has 12 divisors (see below), whose sum is σ = 8753472. Its totient is φ = 2488440.

The previous prime is 4989427. The next prime is 4989431. The reversal of 4989428 is 8249894.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989427) 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, 533 + ... + 3203.

It is an arithmetic number, because the mean of its divisors is an integer number (729456).

Almost surely, 2^4989428 is an apocalyptic number.

It is an amenable number.

4989428 is a deficient number, since it is larger than the sum of its proper divisors (3764044).

4989428 is a wasteful number, since it uses less digits than its factorization.

4989428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3140 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 4989428 is about 2233.7027555161. The cubic root of 4989428 is about 170.8769905212.

The spelling of 4989428 in words is "four million, nine hundred eighty-nine thousand, four hundred twenty-eight".