9051640 has 64 divisors (see below), whose sum is σ = 22276800. Its totient is φ = 3309696.

The previous prime is 9051617. The next prime is 9051697. The reversal of 9051640 is 461509.

9051640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87829 + ... + 87931.

It is an arithmetic number, because the mean of its divisors is an integer number (348075).

Almost surely, 2^9051640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9051640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11138400).

9051640 is an abundant number, since it is smaller than the sum of its proper divisors (13225160).

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

9051640 is a wasteful number, since it uses less digits than its factorization.

9051640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 9051640 is about 3008.5943561737. The cubic root of 9051640 is about 208.4054591158.

The spelling of 9051640 in words is "nine million, fifty-one thousand, six hundred forty".