4989450 has 96 divisors (see below), whose sum is σ = 13570560. Its totient is φ = 1209600.

The previous prime is 4989443. The next prime is 4989451. The reversal of 4989450 is 549894.

It is a super-2 number, since 2×4989450² = 49789222605000, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4989399 and 4989408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134832 + ... + 134868.

It is an arithmetic number, because the mean of its divisors is an integer number (141360).

Almost surely, 2^4989450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4989450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6785280).

4989450 is an abundant number, since it is smaller than the sum of its proper divisors (8581110).

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

4989450 is a wasteful number, since it uses less digits than its factorization.

4989450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 4989450 is about 2233.7076800692. The cubic root of 4989450 is about 170.8772416714.

The spelling of 4989450 in words is "four million, nine hundred eighty-nine thousand, four hundred fifty".