23554040 has 32 divisors (see below), whose sum is σ = 53520480. Its totient is φ = 9328512.

The previous prime is 23554033. The next prime is 23554043. The reversal of 23554040 is 4045532.

It is a junction number, because it is equal to n+sod(n) for n = 23553997 and 23554015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23554043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 6978.

It is an arithmetic number, because the mean of its divisors is an integer number (1672515).

Almost surely, 2^23554040 is an apocalyptic number.

23554040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23554040 is an abundant number, since it is smaller than the sum of its proper divisors (29966440).

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

23554040 is a wasteful number, since it uses less digits than its factorization.

23554040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831 (or 5827 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 23554040 is about 4853.2504571679. The cubic root of 23554040 is about 286.6521055040.

Adding to 23554040 its reverse (4045532), we get a palindrome (27599572).

The spelling of 23554040 in words is "twenty-three million, five hundred fifty-four thousand, forty".