499022321 has 6 divisors (see below), whose sum is σ = 580495410. Its totient is φ = 427733376.

The previous prime is 499022317. The next prime is 499022323. The reversal of 499022321 is 123220994.

It can be written as a sum of positive squares in only one way, i.e., 253159921 + 245862400 = 15911^2 + 15680^2 .

It is not a de Polignac number, because 499022321 - 2² = 499022317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499022323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5092016 + ... + 5092113.

It is an arithmetic number, because the mean of its divisors is an integer number (96749235).

Almost surely, 2^499022321 is an apocalyptic number.

It is an amenable number.

499022321 is a deficient number, since it is larger than the sum of its proper divisors (81473089).

499022321 is a wasteful number, since it uses less digits than its factorization.

499022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10184143 (or 10184136 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 499022321 is about 22338.8075106976. The cubic root of 499022321 is about 793.1828655425.

The spelling of 499022321 in words is "four hundred ninety-nine million, twenty-two thousand, three hundred twenty-one".