23434520 has 16 divisors (see below), whose sum is σ = 52727760. Its totient is φ = 9373792.

The previous prime is 23434519. The next prime is 23434531. The reversal of 23434520 is 2543432.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292892 + ... + 292971.

It is an arithmetic number, because the mean of its divisors is an integer number (3295485).

Almost surely, 2^23434520 is an apocalyptic number.

23434520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23434520 is an abundant number, since it is smaller than the sum of its proper divisors (29293240).

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

23434520 is a wasteful number, since it uses less digits than its factorization.

23434520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585874 (or 585870 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23434520 is about 4840.9213998990. The cubic root of 23434520 is about 286.1664312409.

Adding to 23434520 its reverse (2543432), we get a palindrome (25977952).

The spelling of 23434520 in words is "twenty-three million, four hundred thirty-four thousand, five hundred twenty".