494351893 has 8 divisors (see below), whose sum is σ = 584455680. Its totient is φ = 409118640.

The previous prime is 494351863. The next prime is 494351917. The reversal of 494351893 is 398153494.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-494351893 is a prime.

It is a super-2 number, since 2×494351893² = 488767588225366898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494351863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217413 + ... + 1217818.

It is an arithmetic number, because the mean of its divisors is an integer number (73056960).

Almost surely, 2^494351893 is an apocalyptic number.

It is an amenable number.

494351893 is a deficient number, since it is larger than the sum of its proper divisors (90103787).

494351893 is a wasteful number, since it uses less digits than its factorization.

494351893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435267.

The product of its digits is 466560, while the sum is 46.

The square root of 494351893 is about 22234.0255689338. The cubic root of 494351893 is about 790.7005978591.

The spelling of 494351893 in words is "four hundred ninety-four million, three hundred fifty-one thousand, eight hundred ninety-three".