115980442 has 4 divisors (see below), whose sum is σ = 173970666. Its totient is φ = 57990220.

The previous prime is 115980437. The next prime is 115980461. The reversal of 115980442 is 244089511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244089511 = 263 ⋅928097.

It can be written as a sum of positive squares in only one way, i.e., 76930441 + 39050001 = 8771^2 + 6249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115980398 and 115980407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28995109 + ... + 28995112.

Almost surely, 2^115980442 is an apocalyptic number.

115980442 is a deficient number, since it is larger than the sum of its proper divisors (57990224).

115980442 is an equidigital number, since it uses as much as digits as its factorization.

115980442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57990223.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 115980442 is about 10769.4216186386. The cubic root of 115980442 is about 487.6724852720.

The spelling of 115980442 in words is "one hundred fifteen million, nine hundred eighty thousand, four hundred forty-two".