493944999 has 32 divisors (see below), whose sum is σ = 702121728. Its totient is φ = 308448000.

The previous prime is 493944989. The next prime is 493945003. The reversal of 493944999 is 999449394.

It is a de Polignac number, because none of the positive numbers 2^k-493944999 is a prime.

It is a super-2 number, since 2×493944999² = 487963324074220002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493944959) 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 in 31 ways as a sum of consecutive naturals, for example, 321864 + ... + 323394.

It is an arithmetic number, because the mean of its divisors is an integer number (21941304).

Almost surely, 2^493944999 is an apocalyptic number.

493944999 is a deficient number, since it is larger than the sum of its proper divisors (208176729).

493944999 is a wasteful number, since it uses less digits than its factorization.

493944999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its digits is 11337408, while the sum is 60.

The square root of 493944999 is about 22224.8734304607. The cubic root of 493944999 is about 790.4836001800.

The spelling of 493944999 in words is "four hundred ninety-three million, nine hundred forty-four thousand, nine hundred ninety-nine".