499998019 has 16 divisors (see below), whose sum is σ = 527421600. Its totient is φ = 473324544.

The previous prime is 499997963. The next prime is 499998041. The reversal of 499998019 is 910899994.

It is not a de Polignac number, because 499998019 - 2¹³ = 499989827 is a prime.

It is a super-2 number, since 2×499998019² = 499996038007848722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499998089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537747 + ... + 538675.

It is an arithmetic number, because the mean of its divisors is an integer number (32963850).

Almost surely, 2^499998019 is an apocalyptic number.

499998019 is a deficient number, since it is larger than the sum of its proper divisors (27423581).

499998019 is a wasteful number, since it uses less digits than its factorization.

499998019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 1889568, while the sum is 58.

The square root of 499998019 is about 22360.6354784474. The cubic root of 499998019 is about 793.6994777689.

The spelling of 499998019 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, nineteen".