23408550 has 72 divisors (see below), whose sum is σ = 68622840. Its totient is φ = 5673600.

The previous prime is 23408537. The next prime is 23408579. The reversal of 23408550 is 5580432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2586 + ... + 7314.

It is an arithmetic number, because the mean of its divisors is an integer number (953095).

Almost surely, 2^23408550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23408550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34311420).

23408550 is an abundant number, since it is smaller than the sum of its proper divisors (45214290).

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

23408550 is a wasteful number, since it uses less digits than its factorization.

23408550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758 (or 4750 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 23408550 is about 4838.2383157509. The cubic root of 23408550 is about 286.0606828381.

Adding to 23408550 its reverse (5580432), we get a palindrome (28988982).

The spelling of 23408550 in words is "twenty-three million, four hundred eight thousand, five hundred fifty".