918124642 has 4 divisors (see below), whose sum is σ = 1377186966. Its totient is φ = 459062320.

The previous prime is 918124637. The next prime is 918124657. The reversal of 918124642 is 246421819.

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., 875627281 + 42497361 = 29591^2 + 6519^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229531159 + ... + 229531162.

Almost surely, 2^918124642 is an apocalyptic number.

918124642 is a deficient number, since it is larger than the sum of its proper divisors (459062324).

918124642 is a wasteful number, since it uses less digits than its factorization.

918124642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459062323.

The product of its digits is 27648, while the sum is 37.

The square root of 918124642 is about 30300.5716447726. The cubic root of 918124642 is about 971.9275244160.

The spelling of 918124642 in words is "nine hundred eighteen million, one hundred twenty-four thousand, six hundred forty-two".