16539472 has 20 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 8245088.

The previous prime is 16539463. The next prime is 16539491. The reversal of 16539472 is 27493561.

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, 4779 + ... + 7477.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^16539472 is an apocalyptic number.

It is an amenable number.

16539472 is a deficient number, since it is larger than the sum of its proper divisors (15601328).

16539472 is a wasteful number, since it uses less digits than its factorization.

16539472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090 (or 3084 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 16539472 is about 4066.8749673429. The cubic root of 16539472 is about 254.7850142381.

The spelling of 16539472 in words is "sixteen million, five hundred thirty-nine thousand, four hundred seventy-two".