16942216 has 8 divisors (see below), whose sum is σ = 31766670. Its totient is φ = 8471104.

The previous prime is 16942207. The next prime is 16942229. The reversal of 16942216 is 61224961.

It can be written as a sum of positive squares in only one way, i.e., 12574116 + 4368100 = 3546^2 + 2090^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058881 + ... + 1058896.

Almost surely, 2^16942216 is an apocalyptic number.

It is an amenable number.

16942216 is a deficient number, since it is larger than the sum of its proper divisors (14824454).

16942216 is a wasteful number, since it uses less digits than its factorization.

16942216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117783 (or 2117779 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 16942216 is about 4116.0923216080. The cubic root of 16942216 is about 256.8364971111.

The spelling of 16942216 in words is "sixteen million, nine hundred forty-two thousand, two hundred sixteen".