9040945 has 8 divisors (see below), whose sum is σ = 10878120. Its totient is φ = 7213440.

The previous prime is 9040943. The next prime is 9040949. The reversal of 9040945 is 5490409.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4165681 + 4875264 = 2041^2 + 2208^2 .

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

It is not a de Polignac number, because 9040945 - 2¹ = 9040943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 166 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (1359765).

Almost surely, 2^9040945 is an apocalyptic number.

It is an amenable number.

9040945 is a deficient number, since it is larger than the sum of its proper divisors (1837175).

9040945 is a wasteful number, since it uses less digits than its factorization.

9040945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 9040945 is about 3006.8164227302. The cubic root of 9040945 is about 208.3233460101.

The spelling of 9040945 in words is "nine million, forty thousand, nine hundred forty-five".