23161950 has 240 divisors, whose sum is σ = 79221120. Its totient is φ = 4898880.

The previous prime is 23161937. The next prime is 23161961. The reversal of 23161950 is 5916132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 538629 + ... + 538671.

It is an arithmetic number, because the mean of its divisors is an integer number (330088).

Almost surely, 2^23161950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23161950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39610560).

23161950 is an abundant number, since it is smaller than the sum of its proper divisors (56059170).

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

23161950 is a wasteful number, since it uses less digits than its factorization.

23161950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 23161950 is about 4812.6863600280. The cubic root of 23161950 is about 285.0526218623.

The spelling of 23161950 in words is "twenty-three million, one hundred sixty-one thousand, nine hundred fifty".