494657858 has 8 divisors (see below), whose sum is σ = 743223180. Its totient is φ = 246916800.

The previous prime is 494657833. The next prime is 494657879. The reversal of 494657858 is 858756494.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 471454369 + 23203489 = 21713^2 + 4817^2 .

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

It is a super-2 number, since 2×494657858² = 489372792962296328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204563 + ... + 206966.

Almost surely, 2^494657858 is an apocalyptic number.

494657858 is a deficient number, since it is larger than the sum of its proper divisors (248565322).

494657858 is a wasteful number, since it uses less digits than its factorization.

494657858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412132.

The product of its digits is 9676800, while the sum is 56.

The square root of 494657858 is about 22240.9050625194. The cubic root of 494657858 is about 790.8636914083.

The spelling of 494657858 in words is "four hundred ninety-four million, six hundred fifty-seven thousand, eight hundred fifty-eight".