494728894 has 8 divisors (see below), whose sum is σ = 809556408. Its totient is φ = 224876760.

The previous prime is 494728891. The next prime is 494728901. The reversal of 494728894 is 498827494.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494728891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11243817 + ... + 11243860.

It is an arithmetic number, because the mean of its divisors is an integer number (101194551).

Almost surely, 2^494728894 is an apocalyptic number.

494728894 is a deficient number, since it is larger than the sum of its proper divisors (314827514).

494728894 is a wasteful number, since it uses less digits than its factorization.

494728894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22487690.

The product of its digits is 4644864, while the sum is 55.

The square root of 494728894 is about 22242.5019725749. The cubic root of 494728894 is about 790.9015472739.

The spelling of 494728894 in words is "four hundred ninety-four million, seven hundred twenty-eight thousand, eight hundred ninety-four".