499193478 has 36 divisors (see below), whose sum is σ = 1258173540. Its totient is φ = 142626456.

The previous prime is 499193473. The next prime is 499193503. The reversal of 499193478 is 874391994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499193473) 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 17 ways as a sum of consecutive naturals, for example, 282108 + ... + 283871.

It is an arithmetic number, because the mean of its divisors is an integer number (34949265).

Almost surely, 2^499193478 is an apocalyptic number.

499193478 is an abundant number, since it is smaller than the sum of its proper divisors (758980062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499193478 is a wasteful number, since it uses less digits than its factorization.

499193478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566001 (or 565991 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 499193478 is about 22342.6381163908. The cubic root of 499193478 is about 793.2735383614.

The spelling of 499193478 in words is "four hundred ninety-nine million, one hundred ninety-three thousand, four hundred seventy-eight".