7408645 has 12 divisors (see below), whose sum is σ = 9297036. Its totient is φ = 5667200.

The previous prime is 7408603. The next prime is 7408649. The reversal of 7408645 is 5468047.

It can be written as a sum of positive squares in 2 ways, for example, as 3218436 + 4190209 = 1794^2 + 2047^2 .

It is not a de Polignac number, because 7408645 - 2⁹ = 7408133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7408645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7408649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1245 + ... + 4045.

It is an arithmetic number, because the mean of its divisors is an integer number (774753).

Almost surely, 2^7408645 is an apocalyptic number.

It is an amenable number.

7408645 is a deficient number, since it is larger than the sum of its proper divisors (1888391).

7408645 is a wasteful number, since it uses less digits than its factorization.

7408645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 7408645 is about 2721.8826205404. The cubic root of 7408645 is about 194.9453715044.

The spelling of 7408645 in words is "seven million, four hundred eight thousand, six hundred forty-five".