16443412 has 6 divisors (see below), whose sum is σ = 28775978. Its totient is φ = 8221704.

The previous prime is 16443397. The next prime is 16443431. The reversal of 16443412 is 21434461.

16443412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 5447556 = 3316^2 + 2334^2 .

It is a super-3 number, since 3×16443412³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055423 + ... + 2055430.

Almost surely, 2^16443412 is an apocalyptic number.

It is an amenable number.

16443412 is a deficient number, since it is larger than the sum of its proper divisors (12332566).

16443412 is a wasteful number, since it uses less digits than its factorization.

16443412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110857 (or 4110855 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 16443412 is about 4055.0477185848. The cubic root of 16443412 is about 254.2907988595.

Adding to 16443412 its reverse (21434461), we get a palindrome (37877873).

The spelling of 16443412 in words is "sixteen million, four hundred forty-three thousand, four hundred twelve".