23554540 has 48 divisors (see below), whose sum is σ = 51559200. Its totient is φ = 9031680.

The previous prime is 23554519. The next prime is 23554579. The reversal of 23554540 is 4545532.

It is a super-2 number, since 2×23554540² = 1109632709223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23554499 and 23554508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52236 + ... + 52684.

It is an arithmetic number, because the mean of its divisors is an integer number (1074150).

Almost surely, 2^23554540 is an apocalyptic number.

23554540 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 23554540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25779600).

23554540 is an abundant number, since it is smaller than the sum of its proper divisors (28004660).

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

23554540 is a wasteful number, since it uses less digits than its factorization.

23554540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 23554540 is about 4853.3019687631. The cubic root of 23554540 is about 286.6541338190.

The spelling of 23554540 in words is "twenty-three million, five hundred fifty-four thousand, five hundred forty".