23051840 has 112 divisors (see below), whose sum is σ = 64520064. Its totient is φ = 7680000.

The previous prime is 23051837. The next prime is 23051843. The reversal of 23051840 is 4815032.

It is an interprime number because it is at equal distance from previous prime (23051837) and next prime (23051843).

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (23051843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91715 + ... + 91965.

It is an arithmetic number, because the mean of its divisors is an integer number (576072).

Almost surely, 2^23051840 is an apocalyptic number.

23051840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32260032).

23051840 is an abundant number, since it is smaller than the sum of its proper divisors (41468224).

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

23051840 is a wasteful number, since it uses less digits than its factorization.

23051840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23051840 is about 4801.2331749250. The cubic root of 23051840 is about 284.6001986241.

Adding to 23051840 its reverse (4815032), we get a palindrome (27866872).

The spelling of 23051840 in words is "twenty-three million, fifty-one thousand, eight hundred forty".