16235242 has 4 divisors (see below), whose sum is σ = 24352866. Its totient is φ = 8117620.

The previous prime is 16235237. The next prime is 16235249. The reversal of 16235242 is 24253261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24253261 = 197 ⋅123113.

It can be written as a sum of positive squares in only one way, i.e., 16232841 + 2401 = 4029^2 + 49^2 .

It is not an unprimeable number, because it can be changed into a prime (16235249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4058809 + ... + 4058812.

Almost surely, 2^16235242 is an apocalyptic number.

16235242 is a deficient number, since it is larger than the sum of its proper divisors (8117624).

16235242 is an equidigital number, since it uses as much as digits as its factorization.

16235242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117623.

The product of its digits is 2880, while the sum is 25.

The square root of 16235242 is about 4029.2979537383. The cubic root of 16235242 is about 253.2131497488.

The spelling of 16235242 in words is "sixteen million, two hundred thirty-five thousand, two hundred forty-two".