494476945 has 8 divisors (see below), whose sum is σ = 593540136. Its totient is φ = 395469696.

The previous prime is 494476937. The next prime is 494476949. The reversal of 494476945 is 549674494.

It can be written as a sum of positive squares in 4 ways, for example, as 37249 + 494439696 = 193^2 + 22236^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 494476945 - 2³ = 494476937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494476892 and 494476901.

It is not an unprimeable number, because it can be changed into a prime (494476949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8859 + ... + 32671.

It is an arithmetic number, because the mean of its divisors is an integer number (74192517).

Almost surely, 2^494476945 is an apocalyptic number.

It is an amenable number.

494476945 is a deficient number, since it is larger than the sum of its proper divisors (99063191).

494476945 is a wasteful number, since it uses less digits than its factorization.

494476945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27971.

The product of its digits is 4354560, while the sum is 52.

The square root of 494476945 is about 22236.8375674240. The cubic root of 494476945 is about 790.7672645097.

The spelling of 494476945 in words is "four hundred ninety-four million, four hundred seventy-six thousand, nine hundred forty-five".