23424420 has 24 divisors (see below), whose sum is σ = 65588544. Its totient is φ = 6246496.

The previous prime is 23424403. The next prime is 23424451. The reversal of 23424420 is 2442432.

It is an unprimeable number.

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, 195144 + ... + 195263.

It is an arithmetic number, because the mean of its divisors is an integer number (2732856).

Almost surely, 2^23424420 is an apocalyptic number.

23424420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23424420 is an abundant number, since it is smaller than the sum of its proper divisors (42164124).

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

23424420 is a wasteful number, since it uses less digits than its factorization.

23424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390419 (or 390417 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 23424420 is about 4839.8780976384. The cubic root of 23424420 is about 286.1253138881.

Adding to 23424420 its reverse (2442432), we get a palindrome (25866852).

The spelling of 23424420 in words is "twenty-three million, four hundred twenty-four thousand, four hundred twenty".