16609488 has 40 divisors (see below), whose sum is σ = 49038528. Its totient is φ = 4745472.

The previous prime is 16609487. The next prime is 16609499. The reversal of 16609488 is 88490661.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16609487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24381 + ... + 25052.

Almost surely, 2^16609488 is an apocalyptic number.

It is an amenable number.

16609488 is an abundant number, since it is smaller than the sum of its proper divisors (32429040).

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

16609488 is a wasteful number, since it uses less digits than its factorization.

16609488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49451 (or 49445 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 16609488 is about 4075.4739601671. The cubic root of 16609488 is about 255.1440324328.

The spelling of 16609488 in words is "sixteen million, six hundred nine thousand, four hundred eighty-eight".