499999440601 has 4 divisors (see below), whose sum is σ = 508196152804. Its totient is φ = 491802728400.

The previous prime is 499999440571. The next prime is 499999440607. The reversal of 499999440601 is 106044999994.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 244594539225 + 255404901376 = 494565^2 + 505376^2 .

It is a cyclic number.

It is not a de Polignac number, because 499999440601 - 2¹¹ = 499999438553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499999440607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4098356010 + ... + 4098356131.

It is an arithmetic number, because the mean of its divisors is an integer number (127049038201).

Almost surely, 2^499999440601 is an apocalyptic number.

It is an amenable number.

499999440601 is a deficient number, since it is larger than the sum of its proper divisors (8196712203).

499999440601 is an equidigital number, since it uses as much as digits as its factorization.

499999440601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196712202.

The product of its (nonzero) digits is 22674816, while the sum is 64.

The spelling of 499999440601 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, four hundred forty thousand, six hundred one".