23027940 has 108 divisors (see below), whose sum is σ = 75737844. Its totient is φ = 5660928.

The previous prime is 23027933. The next prime is 23027951. The reversal of 23027940 is 4972032.

It can be written as a sum of positive squares in 6 ways, for example, as 3526884 + 19501056 = 1878^2 + 4416^2 .

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 35 ways as a sum of consecutive naturals, for example, 30042 + ... + 30798.

Almost surely, 2^23027940 is an apocalyptic number.

23027940 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 23027940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37868922).

23027940 is an abundant number, since it is smaller than the sum of its proper divisors (52709904).

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

23027940 is a wasteful number, since it uses less digits than its factorization.

23027940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23027940 is about 4798.7435855649. The cubic root of 23027940 is about 284.5018073917.

Adding to 23027940 its reverse (4972032), we get a palindrome (27999972).

The spelling of 23027940 in words is "twenty-three million, twenty-seven thousand, nine hundred forty".