7342443440 has 20 divisors (see below), whose sum is σ = 17071181184. Its totient is φ = 2936977344.

The previous prime is 7342443439. The next prime is 7342443481. The reversal of 7342443440 is 443442437.

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

It is a super-2 number, since 2×7342443440² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7342443440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45890192 + ... + 45890351.

Almost surely, 2^7342443440 is an apocalyptic number.

It is an amenable number.

7342443440 is an abundant number, since it is smaller than the sum of its proper divisors (9728737744).

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

7342443440 is a wasteful number, since it uses less digits than its factorization.

7342443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91780556 (or 91780550 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 35.

The square root of 7342443440 is about 85688.0589113792. The cubic root of 7342443440 is about 1943.6297439895.

Adding to 7342443440 its reverse (443442437), we get a palindrome (7785885877).

The spelling of 7342443440 in words is "seven billion, three hundred forty-two million, four hundred forty-three thousand, four hundred forty".