4429840 has 20 divisors (see below), whose sum is σ = 10299564. Its totient is φ = 1771904.

The previous prime is 4429829. The next prime is 4429853. The reversal of 4429840 is 489244.

It can be written as a sum of positive squares in 2 ways, for example, as 2458624 + 1971216 = 1568^2 + 1404^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27607 + ... + 27766.

Almost surely, 2^4429840 is an apocalyptic number.

4429840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4429840 is an abundant number, since it is smaller than the sum of its proper divisors (5869724).

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

4429840 is a wasteful number, since it uses less digits than its factorization.

4429840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55386 (or 55380 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4429840 is about 2104.7185084947. The cubic root of 4429840 is about 164.2338523850.

The spelling of 4429840 in words is "four million, four hundred twenty-nine thousand, eight hundred forty".