16049864 has 16 divisors (see below), whose sum is σ = 30137100. Its totient is φ = 8013312.

The previous prime is 16049863. The next prime is 16049867. The reversal of 16049864 is 46894061.

It can be written as a sum of positive squares in 2 ways, for example, as 15132100 + 917764 = 3890^2 + 958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16049861) 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 3 ways as a sum of consecutive naturals, for example, 8144 + ... + 9920.

Almost surely, 2^16049864 is an apocalyptic number.

It is an amenable number.

16049864 is a deficient number, since it is larger than the sum of its proper divisors (14087236).

16049864 is a wasteful number, since it uses less digits than its factorization.

16049864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 16049864 is about 4006.2281512665. The cubic root of 16049864 is about 252.2457081106.

The spelling of 16049864 in words is "sixteen million, forty-nine thousand, eight hundred sixty-four".