23621120 has 40 divisors (see below), whose sum is σ = 56641464. Its totient is φ = 9447424.

The previous prime is 23621113. The next prime is 23621183. The reversal of 23621120 is 2112632.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054 + ... + 7173.

Almost surely, 2^23621120 is an apocalyptic number.

23621120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23621120 is an abundant number, since it is smaller than the sum of its proper divisors (33020344).

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

23621120 is an frugal number, since it uses more digits than its factorization.

23621120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250 (or 9234 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 23621120 is about 4860.1563760850. The cubic root of 23621120 is about 286.9239682532.

Adding to 23621120 its reverse (2112632), we get a palindrome (25733752).

The spelling of 23621120 in words is "twenty-three million, six hundred twenty-one thousand, one hundred twenty".