16138648 has 16 divisors (see below), whose sum is σ = 30756960. Its totient is φ = 7936800.

The previous prime is 16138613. The next prime is 16138667. The reversal of 16138648 is 84683161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16048 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (1922310).

Almost surely, 2^16138648 is an apocalyptic number.

It is an amenable number.

16138648 is a deficient number, since it is larger than the sum of its proper divisors (14618312).

16138648 is a wasteful number, since it uses less digits than its factorization.

16138648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33138 (or 33134 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 16138648 is about 4017.2936163542. The cubic root of 16138648 is about 252.7099740196.

It can be divided in two parts, 161 and 38648, that added together give a square (38809 = 197²).

The spelling of 16138648 in words is "sixteen million, one hundred thirty-eight thousand, six hundred forty-eight".