16423520 has 24 divisors (see below), whose sum is σ = 38800944. Its totient is φ = 6569344.

The previous prime is 16423501. The next prime is 16423531. The reversal of 16423520 is 2532461.

16423520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51164 + ... + 51483.

It is an arithmetic number, because the mean of its divisors is an integer number (1616706).

Almost surely, 2^16423520 is an apocalyptic number.

16423520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16423520 is an abundant number, since it is smaller than the sum of its proper divisors (22377424).

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

16423520 is a wasteful number, since it uses less digits than its factorization.

16423520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102662 (or 102654 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 16423520 is about 4052.5942308600. The cubic root of 16423520 is about 254.1882168714.

Adding to 16423520 its reverse (2532461), we get a palindrome (18955981).

The spelling of 16423520 in words is "sixteen million, four hundred twenty-three thousand, five hundred twenty".