454618394 has 4 divisors (see below), whose sum is σ = 681927594. Its totient is φ = 227309196.

The previous prime is 454618393. The next prime is 454618427. The reversal of 454618394 is 493816454.

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., 439447369 + 15171025 = 20963^2 + 3895^2 .

It is not an unprimeable number, because it can be changed into a prime (454618393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113654597 + ... + 113654600.

Almost surely, 2^454618394 is an apocalyptic number.

454618394 is a deficient number, since it is larger than the sum of its proper divisors (227309200).

454618394 is a wasteful number, since it uses less digits than its factorization.

454618394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227309199.

The product of its digits is 414720, while the sum is 44.

The square root of 454618394 is about 21321.7821487792. The cubic root of 454618394 is about 768.9220842514.

The spelling of 454618394 in words is "four hundred fifty-four million, six hundred eighteen thousand, three hundred ninety-four".