499322881 has 8 divisors (see below), whose sum is σ = 521227304. Its totient is φ = 477861120.

The previous prime is 499322851. The next prime is 499322903. The reversal of 499322881 is 188223994.

It can be written as a sum of positive squares in 4 ways, for example, as 164249856 + 335073025 = 12816^2 + 18305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499322881 - 2¹³ = 499314689 is a prime.

It is a super-2 number, since 2×499322881² = 498646678980280322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499322851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108360 + ... + 112873.

It is an arithmetic number, because the mean of its divisors is an integer number (65153413).

Almost surely, 2^499322881 is an apocalyptic number.

It is an amenable number.

499322881 is a deficient number, since it is larger than the sum of its proper divisors (21904423).

499322881 is a wasteful number, since it uses less digits than its factorization.

499322881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221331.

The product of its digits is 248832, while the sum is 46.

The square root of 499322881 is about 22345.5338043198. The cubic root of 499322881 is about 793.3420776563.

The spelling of 499322881 in words is "four hundred ninety-nine million, three hundred twenty-two thousand, eight hundred eighty-one".