16620384 has 48 divisors (see below), whose sum is σ = 47597760. Its totient is φ = 5036160.

The previous prime is 16620361. The next prime is 16620391. The reversal of 16620384 is 48302661.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814 + ... + 8925.

It is an arithmetic number, because the mean of its divisors is an integer number (991620).

Almost surely, 2^16620384 is an apocalyptic number.

It is an amenable number.

16620384 is an abundant number, since it is smaller than the sum of its proper divisors (30977376).

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

16620384 is a wasteful number, since it uses less digits than its factorization.

16620384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15763 (or 15755 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16620384 is about 4076.8105180398. The cubic root of 16620384 is about 255.1998126327.

The spelling of 16620384 in words is "sixteen million, six hundred twenty thousand, three hundred eighty-four".