16213412 has 12 divisors (see below), whose sum is σ = 28418460. Its totient is φ = 8093856.

The previous prime is 16213411. The next prime is 16213433. The reversal of 16213412 is 21431261.

It can be written as a sum of positive squares in 2 ways, for example, as 5494336 + 10719076 = 2344^2 + 3274^2 .

It is not an unprimeable number, because it can be changed into a prime (16213411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 5694.

It is an arithmetic number, because the mean of its divisors is an integer number (2368205).

Almost surely, 2^16213412 is an apocalyptic number.

It is an amenable number.

16213412 is a deficient number, since it is larger than the sum of its proper divisors (12205048).

16213412 is a wasteful number, since it uses less digits than its factorization.

16213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430 (or 6428 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 16213412 is about 4026.5881338920. The cubic root of 16213412 is about 253.0996082237.

Adding to 16213412 its reverse (21431261), we get a palindrome (37644673).

The spelling of 16213412 in words is "sixteen million, two hundred thirteen thousand, four hundred twelve".