23423040 has 112 divisors (see below), whose sum is σ = 82661760. Its totient is φ = 6243840.

The previous prime is 23422951. The next prime is 23423047. The reversal of 23423040 is 4032432.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23423047) 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, 7285 + ... + 9995.

Almost surely, 2^23423040 is an apocalyptic number.

23423040 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 23423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41330880).

23423040 is an abundant number, since it is smaller than the sum of its proper divisors (59238720).

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

23423040 is a wasteful number, since it uses less digits than its factorization.

23423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23423040 is about 4839.7355299644. The cubic root of 23423040 is about 286.1196949558.

Adding to 23423040 its reverse (4032432), we get a palindrome (27455472).

It can be divided in two parts, 234230 and 40, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 23423040 in words is "twenty-three million, four hundred twenty-three thousand, forty".