7540345 has 8 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 6016560.

The previous prime is 7540327. The next prime is 7540349. The reversal of 7540345 is 5430457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7540345 - 2¹³ = 7532153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7540349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 3904.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^7540345 is an apocalyptic number.

It is an amenable number.

7540345 is a deficient number, since it is larger than the sum of its proper divisors (1531655).

7540345 is a wasteful number, since it uses less digits than its factorization.

7540345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 7540345 is about 2745.9688636254. The cubic root of 7540345 is about 196.0937442025.

The spelling of 7540345 in words is "seven million, five hundred forty thousand, three hundred forty-five".