16217242 has 16 divisors (see below), whose sum is σ = 24809832. Its totient is φ = 7948800.

The previous prime is 16217207. The next prime is 16217251. The reversal of 16217242 is 24271261.

It can be written as a sum of positive squares in 4 ways, for example, as 15610401 + 606841 = 3951^2 + 779^2 .

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40242 + ... + 40642.

Almost surely, 2^16217242 is an apocalyptic number.

16217242 is a deficient number, since it is larger than the sum of its proper divisors (8592590).

16217242 is a wasteful number, since it uses less digits than its factorization.

16217242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its digits is 1344, while the sum is 25.

The square root of 16217242 is about 4027.0636945546. The cubic root of 16217242 is about 253.1195360706.

The spelling of 16217242 in words is "sixteen million, two hundred seventeen thousand, two hundred forty-two".