16620484 has 6 divisors (see below), whose sum is σ = 29085854. Its totient is φ = 8310240.

The previous prime is 16620481. The next prime is 16620493. The reversal of 16620484 is 48402661.

It can be written as a sum of positive squares in only one way, i.e., 13897984 + 2722500 = 3728^2 + 1650^2 .

It is not an unprimeable number, because it can be changed into a prime (16620481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077557 + ... + 2077564.

Almost surely, 2^16620484 is an apocalyptic number.

It is an amenable number.

16620484 is a deficient number, since it is larger than the sum of its proper divisors (12465370).

16620484 is a wasteful number, since it uses less digits than its factorization.

16620484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155125 (or 4155123 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 16620484 is about 4076.8227825109. The cubic root of 16620484 is about 255.2003244526.

The spelling of 16620484 in words is "sixteen million, six hundred twenty thousand, four hundred eighty-four".