16309412 has 24 divisors (see below), whose sum is σ = 32706240. Its totient is φ = 6971040.

The previous prime is 16309411. The next prime is 16309451. The reversal of 16309412 is 21490361.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16309411) 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, 16862 + ... + 17802.

It is an arithmetic number, because the mean of its divisors is an integer number (1362760).

Almost surely, 2^16309412 is an apocalyptic number.

It is an amenable number.

16309412 is an abundant number, since it is smaller than the sum of its proper divisors (16396828).

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

16309412 is a wasteful number, since it uses less digits than its factorization.

16309412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 16309412 is about 4038.4913024544. The cubic root of 16309412 is about 253.5981618087.

Adding to 16309412 its reverse (21490361), we get a palindrome (37799773).

The spelling of 16309412 in words is "sixteen million, three hundred nine thousand, four hundred twelve".