9541638 has 48 divisors (see below), whose sum is σ = 22211280. Its totient is φ = 3066336.

The previous prime is 9541627. The next prime is 9541663. The reversal of 9541638 is 8361459.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13756 + ... + 14432.

It is an arithmetic number, because the mean of its divisors is an integer number (462735).

Almost surely, 2^9541638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9541638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11105640).

9541638 is an abundant number, since it is smaller than the sum of its proper divisors (12669642).

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

9541638 is a wasteful number, since it uses less digits than its factorization.

9541638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 711 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 9541638 is about 3088.9541919556. The cubic root of 9541638 is about 212.1001514456.

The spelling of 9541638 in words is "nine million, five hundred forty-one thousand, six hundred thirty-eight".