118992442 has 4 divisors (see below), whose sum is σ = 178488666. Its totient is φ = 59496220.

The previous prime is 118992431. The next prime is 118992449. The reversal of 118992442 is 244299811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244299811 = 7 ⋅34899973.

It can be written as a sum of positive squares in only one way, i.e., 116834481 + 2157961 = 10809^2 + 1469^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 118992395 and 118992404.

It is not an unprimeable number, because it can be changed into a prime (118992449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29748109 + ... + 29748112.

Almost surely, 2^118992442 is an apocalyptic number.

118992442 is a deficient number, since it is larger than the sum of its proper divisors (59496224).

118992442 is an equidigital number, since it uses as much as digits as its factorization.

118992442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59496223.

The product of its digits is 41472, while the sum is 40.

The square root of 118992442 is about 10908.3656887730. The cubic root of 118992442 is about 491.8580599427.

It can be divided in two parts, 11899 and 2442, that added together give a palindrome (14341).

The spelling of 118992442 in words is "one hundred eighteen million, nine hundred ninety-two thousand, four hundred forty-two".