4399980 has 48 divisors (see below), whose sum is σ = 13269984. Its totient is φ = 1082880.

The previous prime is 4399973. The next prime is 4399987. The reversal of 4399980 is 899934.

It is an interprime number because it is at equal distance from previous prime (4399973) and next prime (4399987).

It is not an unprimeable number, because it can be changed into a prime (4399987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2041 + ... + 3600.

It is an arithmetic number, because the mean of its divisors is an integer number (276458).

Almost surely, 2^4399980 is an apocalyptic number.

It is an amenable number.

4399980 is an abundant number, since it is smaller than the sum of its proper divisors (8870004).

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

4399980 is a wasteful number, since it uses less digits than its factorization.

4399980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666 (or 5664 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 4399980 is about 2097.6129290219. The cubic root of 4399980 is about 163.8640058406.

The spelling of 4399980 in words is "four million, three hundred ninety-nine thousand, nine hundred eighty".