4333640 has 32 divisors (see below), whose sum is σ = 10325880. Its totient is φ = 1631232.

The previous prime is 4333633. The next prime is 4333649. The reversal of 4333640 is 463334.

It can be written as a sum of positive squares in 4 ways, for example, as 4251844 + 81796 = 2062^2 + 286^2 .

It is not an unprimeable number, because it can be changed into a prime (4333649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2507 + ... + 3866.

Almost surely, 2^4333640 is an apocalyptic number.

4333640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4333640 is an abundant number, since it is smaller than the sum of its proper divisors (5992240).

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

4333640 is a wasteful number, since it uses less digits than its factorization.

4333640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401 (or 6397 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 4333640 is about 2081.7396571137. The cubic root of 4333640 is about 163.0362873531.

Adding to 4333640 its reverse (463334), we get a palindrome (4796974).

The spelling of 4333640 in words is "four million, three hundred thirty-three thousand, six hundred forty".