4809940 has 24 divisors (see below), whose sum is σ = 10450440. Its totient is φ = 1857408.

The previous prime is 4809901. The next prime is 4809941. The reversal of 4809940 is 499084.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 4648336 = 402^2 + 2156^2 .

It is a super-3 number, since 3×4809940³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4809896 and 4809905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4809941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3567 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (435435).

Almost surely, 2^4809940 is an apocalyptic number.

It is an amenable number.

4809940 is an abundant number, since it is smaller than the sum of its proper divisors (5640500).

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

4809940 is a wasteful number, since it uses less digits than its factorization.

4809940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331 (or 8329 counting only the distinct ones).

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

The square root of 4809940 is about 2193.1575410809. The cubic root of 4809940 is about 168.8028933415.

The spelling of 4809940 in words is "four million, eight hundred nine thousand, nine hundred forty".