118590642 has 20 divisors (see below), whose sum is σ = 265731246. Its totient is φ = 39530160.

The previous prime is 118590611. The next prime is 118590643. The reversal of 118590642 is 246095811.

118590642 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 9 + 0 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118396161 + 194481 = 10881^2 + 441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118590597 and 118590606.

It is not an unprimeable number, because it can be changed into a prime (118590643) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 365859 + ... + 366182.

Almost surely, 2^118590642 is an apocalyptic number.

118590642 is an abundant number, since it is smaller than the sum of its proper divisors (147140604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118590642 is an equidigital number, since it uses as much as digits as its factorization.

118590642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732055 (or 732046 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 118590642 is about 10889.9330576455. The cubic root of 118590642 is about 491.3038190555.

The spelling of 118590642 in words is "one hundred eighteen million, five hundred ninety thousand, six hundred forty-two".