23641398 has 48 divisors (see below), whose sum is σ = 56347200. Its totient is φ = 7104240.

The previous prime is 23641393. The next prime is 23641403. The reversal of 23641398 is 89314632.

23641398 is a `hidden beast` number, since 2 + 3 + 641 + 3 + 9 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (23641393) and next prime (23641403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23641391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27093 + ... + 27951.

It is an arithmetic number, because the mean of its divisors is an integer number (1173900).

Almost surely, 2^23641398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23641398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28173600).

23641398 is an abundant number, since it is smaller than the sum of its proper divisors (32705802).

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

23641398 is a wasteful number, since it uses less digits than its factorization.

23641398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1014 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23641398 is about 4862.2420754216. The cubic root of 23641398 is about 287.0060498832.

The spelling of 23641398 in words is "twenty-three million, six hundred forty-one thousand, three hundred ninety-eight".