499978466 has 32 divisors (see below), whose sum is σ = 859744368. Its totient is φ = 216023040.

The previous prime is 499978463. The next prime is 499978481. The reversal of 499978466 is 664879994.

It can be written as a sum of positive squares in 8 ways, for example, as 149352841 + 350625625 = 12221^2 + 18725^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499978399 and 499978408.

It is not an unprimeable number, because it can be changed into a prime (499978463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82376 + ... + 88236.

Almost surely, 2^499978466 is an apocalyptic number.

499978466 is a deficient number, since it is larger than the sum of its proper divisors (359765902).

499978466 is a wasteful number, since it uses less digits than its factorization.

499978466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086.

The product of its digits is 23514624, while the sum is 62.

The square root of 499978466 is about 22360.1982549350. The cubic root of 499978466 is about 793.6891314558.

The spelling of 499978466 in words is "four hundred ninety-nine million, nine hundred seventy-eight thousand, four hundred sixty-six".