455742218 has 8 divisors (see below), whose sum is σ = 683913348. Its totient is φ = 227771104.

The previous prime is 455742193. The next prime is 455742223. The reversal of 455742218 is 812247554.

It can be written as a sum of positive squares in 2 ways, for example, as 446603689 + 9138529 = 21133^2 + 3023^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44171 + ... + 53502.

Almost surely, 2^455742218 is an apocalyptic number.

455742218 is a deficient number, since it is larger than the sum of its proper divisors (228171130).

455742218 is a wasteful number, since it uses less digits than its factorization.

455742218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100008.

The product of its digits is 89600, while the sum is 38.

The square root of 455742218 is about 21348.1197766923. The cubic root of 455742218 is about 769.5551588108. Note that the first 3 decimals are identical.

The spelling of 455742218 in words is "four hundred fifty-five million, seven hundred forty-two thousand, two hundred eighteen".