9013640 has 16 divisors (see below), whose sum is σ = 20280780. Its totient is φ = 3605440.

The previous prime is 9013639. The next prime is 9013649. The reversal of 9013640 is 463109.

It can be written as a sum of positive squares in 2 ways, for example, as 7431076 + 1582564 = 2726^2 + 1258^2 .

It is not an unprimeable number, because it can be changed into a prime (9013649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112631 + ... + 112710.

Almost surely, 2^9013640 is an apocalyptic number.

It is an amenable number.

9013640 is an abundant number, since it is smaller than the sum of its proper divisors (11267140).

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

9013640 is a wasteful number, since it uses less digits than its factorization.

9013640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225352 (or 225348 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 9013640 is about 3002.2724726447. The cubic root of 9013640 is about 208.1134120167.

Adding to 9013640 its reverse (463109), we get a palindrome (9476749).

The spelling of 9013640 in words is "nine million, thirteen thousand, six hundred forty".