16439464 has 8 divisors (see below), whose sum is σ = 30824010. Its totient is φ = 8219728.

The previous prime is 16439461. The next prime is 16439471. The reversal of 16439464 is 46493461.

It can be written as a sum of positive squares in only one way, i.e., 8655364 + 7784100 = 2942^2 + 2790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (16439461) 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 as a sum of consecutive naturals, namely, 1027459 + ... + 1027474.

Almost surely, 2^16439464 is an apocalyptic number.

It is an amenable number.

16439464 is a deficient number, since it is larger than the sum of its proper divisors (14384546).

16439464 is a wasteful number, since it uses less digits than its factorization.

16439464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054939 (or 2054935 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 16439464 is about 4054.5608886783. The cubic root of 16439464 is about 254.2704458161.

The spelling of 16439464 in words is "sixteen million, four hundred thirty-nine thousand, four hundred sixty-four".