23424340 has 24 divisors (see below), whose sum is σ = 51780960. Its totient is φ = 8876448.

The previous prime is 23424337. The next prime is 23424347. The reversal of 23424340 is 4342432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23424347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30442 + ... + 31201.

It is an arithmetic number, because the mean of its divisors is an integer number (2157540).

Almost surely, 2^23424340 is an apocalyptic number.

23424340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23424340 is an abundant number, since it is smaller than the sum of its proper divisors (28356620).

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

23424340 is a wasteful number, since it uses less digits than its factorization.

23424340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61671 (or 61669 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 23424340 is about 4839.8698329604. The cubic root of 23424340 is about 286.1249881589.

Adding to 23424340 its reverse (4342432), we get a palindrome (27766772).

The spelling of 23424340 in words is "twenty-three million, four hundred twenty-four thousand, three hundred forty".