4989400 has 96 divisors (see below), whose sum is σ = 13280400. Its totient is φ = 1728000.

The previous prime is 4989377. The next prime is 4989409. The reversal of 4989400 is 49894.

It is a super-2 number, since 2×4989400² = 49788224720000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989409) 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, 49350 + ... + 49450.

Almost surely, 2^4989400 is an apocalyptic number.

4989400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4989400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6640200).

4989400 is an abundant number, since it is smaller than the sum of its proper divisors (8291000).

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

4989400 is a wasteful number, since it uses less digits than its factorization.

4989400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 4989400 is about 2233.6964878873. The cubic root of 4989400 is about 170.8766708743.

Multiplying 4989400 by its reverse (49894), we get a square (248941123600 = 498940²).

4989400 divided by its reverse (49894) gives a square (100 = 10²).

The spelling of 4989400 in words is "four million, nine hundred eighty-nine thousand, four hundred".