79982242 has 4 divisors (see below), whose sum is σ = 119973366. Its totient is φ = 39991120.

The previous prime is 79982233. The next prime is 79982249. The reversal of 79982242 is 24228997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24228997 = 13 ⋅1863769.

It can be written as a sum of positive squares in only one way, i.e., 56836521 + 23145721 = 7539^2 + 4811^2 .

It is not an unprimeable number, because it can be changed into a prime (79982249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19995559 + ... + 19995562.

Almost surely, 2^79982242 is an apocalyptic number.

79982242 is a deficient number, since it is larger than the sum of its proper divisors (39991124).

79982242 is a wasteful number, since it uses less digits than its factorization.

79982242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39991123.

The product of its digits is 145152, while the sum is 43.

The square root of 79982242 is about 8943.2791525257. The cubic root of 79982242 is about 430.8550536044.

The spelling of 79982242 in words is "seventy-nine million, nine hundred eighty-two thousand, two hundred forty-two".