494019849 has 4 divisors (see below), whose sum is σ = 658693136. Its totient is φ = 329346564.

The previous prime is 494019833. The next prime is 494019853. The reversal of 494019849 is 948910494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 494019849 - 2⁴ = 494019833 is a prime.

It is a super-2 number, since 2×494019849² = 488111222411965602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 494019798 and 494019807.

It is not an unprimeable number, because it can be changed into a prime (494019809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82336639 + ... + 82336644.

It is an arithmetic number, because the mean of its divisors is an integer number (164673284).

Almost surely, 2^494019849 is an apocalyptic number.

It is an amenable number.

494019849 is a deficient number, since it is larger than the sum of its proper divisors (164673287).

494019849 is a wasteful number, since it uses less digits than its factorization.

494019849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164673286.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 494019849 is about 22226.5572907727. The cubic root of 494019849 is about 790.5235268312.

The spelling of 494019849 in words is "four hundred ninety-four million, nineteen thousand, eight hundred forty-nine".