493924394 has 4 divisors (see below), whose sum is σ = 740886594. Its totient is φ = 246962196.

The previous prime is 493924391. The next prime is 493924397. The reversal of 493924394 is 493429394.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (493924391) and next prime (493924397).

It can be written as a sum of positive squares in only one way, i.e., 417589225 + 76335169 = 20435^2 + 8737^2 .

It is a super-2 number, since 2×493924394² = 487922613976534472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (493924391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123481097 + ... + 123481100.

Almost surely, 2^493924394 is an apocalyptic number.

493924394 is a deficient number, since it is larger than the sum of its proper divisors (246962200).

493924394 is a wasteful number, since it uses less digits than its factorization.

493924394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246962199.

The product of its digits is 839808, while the sum is 47.

The square root of 493924394 is about 22224.4098684307. The cubic root of 493924394 is about 790.4726083077.

The spelling of 493924394 in words is "four hundred ninety-three million, nine hundred twenty-four thousand, three hundred ninety-four".