804493154 has 4 divisors (see below), whose sum is σ = 1206739734. Its totient is φ = 402246576.

The previous prime is 804493153. The next prime is 804493163. The reversal of 804493154 is 451394408.

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., 721191025 + 83302129 = 26855^2 + 9127^2 .

It is not an unprimeable number, because it can be changed into a prime (804493153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201123287 + ... + 201123290.

Almost surely, 2^804493154 is an apocalyptic number.

804493154 is a deficient number, since it is larger than the sum of its proper divisors (402246580).

804493154 is a wasteful number, since it uses less digits than its factorization.

804493154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402246579.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 804493154 is about 28363.5885247266. The cubic root of 804493154 is about 930.0524709286.

The spelling of 804493154 in words is "eight hundred four million, four hundred ninety-three thousand, one hundred fifty-four".