4429980 has 36 divisors (see below), whose sum is σ = 13438152. Its totient is φ = 1181280.

The previous prime is 4429969. The next prime is 4429981. The reversal of 4429980 is 899244.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4429981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12126 + ... + 12485.

It is an arithmetic number, because the mean of its divisors is an integer number (373282).

Almost surely, 2^4429980 is an apocalyptic number.

It is an amenable number.

4429980 is an abundant number, since it is smaller than the sum of its proper divisors (9008172).

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

4429980 is a wasteful number, since it uses less digits than its factorization.

4429980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24626 (or 24621 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4429980 is about 2104.7517668362. The cubic root of 4429980 is about 164.2355825074.

The spelling of 4429980 in words is "four million, four hundred twenty-nine thousand, nine hundred eighty".