7234440 has 96 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 1816704.

The previous prime is 7234433. The next prime is 7234453. The reversal of 7234440 is 444327.

It is a super-2 number, since 2×7234440² = 104674244227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 7234440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43237 + ... + 43403.

It is an arithmetic number, because the mean of its divisors is an integer number (240030).

Almost surely, 2^7234440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7234440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11521440).

7234440 is an abundant number, since it is smaller than the sum of its proper divisors (15808440).

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

7234440 is a wasteful number, since it uses less digits than its factorization.

7234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 7234440 is about 2689.6914321163. The cubic root of 7234440 is about 193.4052711549.

Adding to 7234440 its reverse (444327), we get a palindrome (7678767).

The spelling of 7234440 in words is "seven million, two hundred thirty-four thousand, four hundred forty".