499305481 has 4 divisors (see below), whose sum is σ = 499350852. Its totient is φ = 499260112.

The previous prime is 499305479. The next prime is 499305493. The reversal of 499305481 is 184503994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 484220025 + 15085456 = 22005^2 + 3884^2 .

It is a cyclic number.

It is not a de Polignac number, because 499305481 - 2¹ = 499305479 is a prime.

It is a super-2 number, since 2×499305481² = 498611926713282722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499305881) 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, 5475 + ... + 32071.

It is an arithmetic number, because the mean of its divisors is an integer number (124837713).

Almost surely, 2^499305481 is an apocalyptic number.

It is an amenable number.

499305481 is a deficient number, since it is larger than the sum of its proper divisors (45371).

499305481 is a wasteful number, since it uses less digits than its factorization.

499305481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45370.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 499305481 is about 22345.1444613813. The cubic root of 499305481 is about 793.3328623015.

The spelling of 499305481 in words is "four hundred ninety-nine million, three hundred five thousand, four hundred eighty-one".