493404394 has 16 divisors (see below), whose sum is σ = 846811008. Its totient is φ = 211215312.

The previous prime is 493404391. The next prime is 493404409.

493404394 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (493404391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7449 + ... + 32284.

It is an arithmetic number, because the mean of its divisors is an integer number (52925688).

Almost surely, 2^493404394 is an apocalyptic number.

493404394 is a deficient number, since it is larger than the sum of its proper divisors (353406614).

493404394 is a wasteful number, since it uses less digits than its factorization.

493404394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40629.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 493404394 is about 22212.7079393756. The cubic root of 493404394 is about 790.1951096363.

The spelling of 493404394 in words is "four hundred ninety-three million, four hundred four thousand, three hundred ninety-four".