494145838 has 8 divisors (see below), whose sum is σ = 741633480. Its totient is φ = 246934680.

The previous prime is 494145791. The next prime is 494145857. The reversal of 494145838 is 838541494.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 64593 + ... + 71836.

It is an arithmetic number, because the mean of its divisors is an integer number (92704185).

Almost surely, 2^494145838 is an apocalyptic number.

494145838 is a deficient number, since it is larger than the sum of its proper divisors (247487642).

494145838 is a wasteful number, since it uses less digits than its factorization.

494145838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138242.

The product of its digits is 552960, while the sum is 46.

The square root of 494145838 is about 22229.3913097053. The cubic root of 494145838 is about 790.5907230537.

The spelling of 494145838 in words is "four hundred ninety-four million, one hundred forty-five thousand, eight hundred thirty-eight".