118790642 has 4 divisors (see below), whose sum is σ = 178185966. Its totient is φ = 59395320.

The previous prime is 118790629. The next prime is 118790647. The reversal of 118790642 is 246097811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94692361 + 24098281 = 9731^2 + 4909^2 .

It is a super-2 number, since 2×118790642² = 28222433253544328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118790596 and 118790605.

It is not an unprimeable number, because it can be changed into a prime (118790647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29697659 + ... + 29697662.

Almost surely, 2^118790642 is an apocalyptic number.

118790642 is a deficient number, since it is larger than the sum of its proper divisors (59395324).

118790642 is an equidigital number, since it uses as much as digits as its factorization.

118790642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59395323.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 118790642 is about 10899.1119821754. Note that the first 3 decimals coincide. The cubic root of 118790642 is about 491.5798542631.

The spelling of 118790642 in words is "one hundred eighteen million, seven hundred ninety thousand, six hundred forty-two".