16319432 has 8 divisors (see below), whose sum is σ = 30598950. Its totient is φ = 8159712.

The previous prime is 16319419. The next prime is 16319437. The reversal of 16319432 is 23491361.

It can be written as a sum of positive squares in only one way, i.e., 8844676 + 7474756 = 2974^2 + 2734^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16319395 and 16319404.

It is not an unprimeable number, because it can be changed into a prime (16319437) by changing a digit.

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 as a sum of consecutive naturals, namely, 1019957 + ... + 1019972.

Almost surely, 2^16319432 is an apocalyptic number.

It is an amenable number.

16319432 is a deficient number, since it is larger than the sum of its proper divisors (14279518).

16319432 is a wasteful number, since it uses less digits than its factorization.

16319432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039935 (or 2039931 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 16319432 is about 4039.7316742576. The cubic root of 16319432 is about 253.6500854746.

The spelling of 16319432 in words is "sixteen million, three hundred nineteen thousand, four hundred thirty-two".