16761242 has 4 divisors (see below), whose sum is σ = 25141866. Its totient is φ = 8380620.

The previous prime is 16761233. The next prime is 16761247. The reversal of 16761242 is 24216761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24216761 = 349 ⋅69389.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 5058001 = 3421^2 + 2249^2 .

It is not an unprimeable number, because it can be changed into a prime (16761247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4190309 + ... + 4190312.

Almost surely, 2^16761242 is an apocalyptic number.

16761242 is a deficient number, since it is larger than the sum of its proper divisors (8380624).

16761242 is an equidigital number, since it uses as much as digits as its factorization.

16761242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8380623.

The product of its digits is 4032, while the sum is 29.

The square root of 16761242 is about 4094.0495844579. The cubic root of 16761242 is about 255.9187262348.

The spelling of 16761242 in words is "sixteen million, seven hundred sixty-one thousand, two hundred forty-two".