7345066440 has 64 divisors (see below), whose sum is σ = 22345580160. Its totient is φ = 1931095040.

The previous prime is 7345066403. The next prime is 7345066441. The reversal of 7345066440 is 446605437.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7345066441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 422529 + ... + 439568.

It is an arithmetic number, because the mean of its divisors is an integer number (349149690).

Almost surely, 2^7345066440 is an apocalyptic number.

It is an amenable number.

7345066440 is an abundant number, since it is smaller than the sum of its proper divisors (15000513720).

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

7345066440 is a wasteful number, since it uses less digits than its factorization.

7345066440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862182 (or 862178 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 7345066440 is about 85703.3630612008. The cubic root of 7345066440 is about 1943.8611625855.

The spelling of 7345066440 in words is "seven billion, three hundred forty-five million, sixty-six thousand, four hundred forty".