918149642 has 8 divisors (see below), whose sum is σ = 1397780256. Its totient is φ = 452222892.

The previous prime is 918149629. The next prime is 918149647. The reversal of 918149642 is 246941819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 918149593 and 918149602.

It is not an unprimeable number, because it can be changed into a prime (918149647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425798 + ... + 3426065.

It is an arithmetic number, because the mean of its divisors is an integer number (174722532).

Almost surely, 2^918149642 is an apocalyptic number.

918149642 is a deficient number, since it is larger than the sum of its proper divisors (479630614).

918149642 is a wasteful number, since it uses less digits than its factorization.

918149642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851932.

The product of its digits is 124416, while the sum is 44.

The square root of 918149642 is about 30300.9841754356. The cubic root of 918149642 is about 971.9363460096.

The spelling of 918149642 in words is "nine hundred eighteen million, one hundred forty-nine thousand, six hundred forty-two".