23383540 has 12 divisors (see below), whose sum is σ = 49105476. Its totient is φ = 9353408.

The previous prime is 23383523. The next prime is 23383559. The reversal of 23383540 is 4538332.

It can be written as a sum of positive squares in 2 ways, for example, as 11370384 + 12013156 = 3372^2 + 3466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23383499 and 23383508.

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, 584569 + ... + 584608.

It is an arithmetic number, because the mean of its divisors is an integer number (4092123).

Almost surely, 2^23383540 is an apocalyptic number.

23383540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23383540 is an abundant number, since it is smaller than the sum of its proper divisors (25721936).

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

23383540 is a wasteful number, since it uses less digits than its factorization.

23383540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169186 (or 1169184 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 23383540 is about 4835.6530065752. The cubic root of 23383540 is about 285.9587695466.

The spelling of 23383540 in words is "twenty-three million, three hundred eighty-three thousand, five hundred forty".