4989420 has 72 divisors (see below), whose sum is σ = 15449616. Its totient is φ = 1302912.

The previous prime is 4989409. The next prime is 4989427. The reversal of 4989420 is 249894.

It is a happy number.

4989420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 9279 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (214578).

Almost surely, 2^4989420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4989420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7724808).

4989420 is an abundant number, since it is smaller than the sum of its proper divisors (10460196).

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

4989420 is a wasteful number, since it uses less digits than its factorization.

4989420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4989420 is about 2233.7009647668. The cubic root of 4989420 is about 170.8768991936.

The spelling of 4989420 in words is "four million, nine hundred eighty-nine thousand, four hundred twenty".