4479940 has 24 divisors (see below), whose sum is σ = 9817920. Its totient is φ = 1713888.

The previous prime is 4479919. The next prime is 4479941. The reversal of 4479940 is 499744.

It is a self number, because there is not a number n which added to its sum of digits gives 4479940.

It is not an unprimeable number, because it can be changed into a prime (4479941) 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, 4410 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (409080).

Almost surely, 2^4479940 is an apocalyptic number.

It is an amenable number.

4479940 is an abundant number, since it is smaller than the sum of its proper divisors (5337980).

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

4479940 is a wasteful number, since it uses less digits than its factorization.

4479940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9771 (or 9769 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 4479940 is about 2116.5868751365. The cubic root of 4479940 is about 164.8506760453.

The spelling of 4479940 in words is "four million, four hundred seventy-nine thousand, nine hundred forty".