11641938 has 64 divisors (see below), whose sum is σ = 29417472. Its totient is φ = 2983680.

The previous prime is 11641937. The next prime is 11641943. The reversal of 11641938 is 83914611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11641899 and 11641908.

It is not an unprimeable number, because it can be changed into a prime (11641937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52095 + ... + 52317.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 2^11641938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11641938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14708736).

11641938 is an abundant number, since it is smaller than the sum of its proper divisors (17775534).

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

11641938 is a wasteful number, since it uses less digits than its factorization.

11641938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its digits is 5184, while the sum is 33.

The square root of 11641938 is about 3412.0284289554. The cubic root of 11641938 is about 226.6427132512.

The spelling of 11641938 in words is "eleven million, six hundred forty-one thousand, nine hundred thirty-eight".