23427040 has 96 divisors (see below), whose sum is σ = 68160960. Its totient is φ = 7409664.

The previous prime is 23427029. The next prime is 23427049. The reversal of 23427040 is 4072432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23427049) 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, 13756 + ... + 15364.

It is an arithmetic number, because the mean of its divisors is an integer number (710010).

Almost surely, 2^23427040 is an apocalyptic number.

23427040 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 23427040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34080480).

23427040 is an abundant number, since it is smaller than the sum of its proper divisors (44733920).

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

23427040 is a wasteful number, since it uses less digits than its factorization.

23427040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 23427040 is about 4840.1487580445. The cubic root of 23427040 is about 286.1359811088.

Adding to 23427040 its reverse (4072432), we get a palindrome (27499472).

The spelling of 23427040 in words is "twenty-three million, four hundred twenty-seven thousand, forty".