23550340 has 48 divisors (see below), whose sum is σ = 54359424. Its totient is φ = 8499200.

The previous prime is 23550301. The next prime is 23550347. The reversal of 23550340 is 4305532.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (23550347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36420 + ... + 37060.

It is an arithmetic number, because the mean of its divisors is an integer number (1132488).

Almost surely, 2^23550340 is an apocalyptic number.

23550340 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 23550340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27179712).

23550340 is an abundant number, since it is smaller than the sum of its proper divisors (30809084).

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

23550340 is a wasteful number, since it uses less digits than its factorization.

23550340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23550340 is about 4852.8692543690. The cubic root of 23550340 is about 286.6370950807.

Adding to 23550340 its reverse (4305532), we get a palindrome (27855872).

The spelling of 23550340 in words is "twenty-three million, five hundred fifty thousand, three hundred forty".