4322440 has 16 divisors (see below), whose sum is σ = 9725580. Its totient is φ = 1728960.

The previous prime is 4322429. The next prime is 4322441. The reversal of 4322440 is 442234.

It can be written as a sum of positive squares in 2 ways, for example, as 4318084 + 4356 = 2078^2 + 66^2 .

It is not an unprimeable number, because it can be changed into a prime (4322441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53991 + ... + 54070.

Almost surely, 2^4322440 is an apocalyptic number.

4322440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4322440 is an abundant number, since it is smaller than the sum of its proper divisors (5403140).

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

4322440 is a wasteful number, since it uses less digits than its factorization.

4322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108072 (or 108068 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 4322440 is about 2079.0478589970. The cubic root of 4322440 is about 162.8957140902.

Adding to 4322440 its reverse (442234), we get a palindrome (4764674).

It can be divided in two parts, 43224 and 40, that added together give a square (43264 = 208²).

The spelling of 4322440 in words is "four million, three hundred twenty-two thousand, four hundred forty".