4229640 has 96 divisors (see below), whose sum is σ = 14227200. Its totient is φ = 1088640.

The previous prime is 4229639. The next prime is 4229657. The reversal of 4229640 is 469224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10971 + ... + 11349.

It is an arithmetic number, because the mean of its divisors is an integer number (148200).

Almost surely, 2^4229640 is an apocalyptic number.

4229640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4229640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7113600).

4229640 is an abundant number, since it is smaller than the sum of its proper divisors (9997560).

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

4229640 is a wasteful number, since it uses less digits than its factorization.

4229640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4229640 is about 2056.6088592632. The cubic root of 4229640 is about 161.7215151456.

The spelling of 4229640 in words is "four million, two hundred twenty-nine thousand, six hundred forty".