494133871 has 24 divisors (see below), whose sum is σ = 642166560. Its totient is φ = 371743680.

The previous prime is 494133869. The next prime is 494133877. The reversal of 494133871 is 178331494.

It is not a de Polignac number, because 494133871 - 2¹ = 494133869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494133877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14505 + ... + 34621.

It is an arithmetic number, because the mean of its divisors is an integer number (26756940).

Almost surely, 2^494133871 is an apocalyptic number.

494133871 is a deficient number, since it is larger than the sum of its proper divisors (148032689).

494133871 is a wasteful number, since it uses less digits than its factorization.

494133871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20175 (or 20164 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 494133871 is about 22229.1221374124. The cubic root of 494133871 is about 790.5843409463.

The spelling of 494133871 in words is "four hundred ninety-four million, one hundred thirty-three thousand, eight hundred seventy-one".