1000000499990 has 16 divisors (see below), whose sum is σ = 1809137963952. Its totient is φ = 397969741344.

The previous prime is 1000000499929. The next prime is 1000000500019. The reversal of 1000000499990 is 999940000001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253805264 + ... + 253809203.

It is an arithmetic number, because the mean of its divisors is an integer number (113071122747).

Almost surely, 2^{1000000499990} is an apocalyptic number.

1000000499990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000000499990 is a deficient number, since it is larger than the sum of its proper divisors (809137463962).

1000000499990 is a wasteful number, since it uses less digits than its factorization.

1000000499990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507614671.

The product of its (nonzero) digits is 26244, while the sum is 41.

Adding to 1000000499990 its reverse (999940000001), we get a palindrome (1999940499991).

The spelling of 1000000499990 in words is "one trillion, four hundred ninety-nine thousand, nine hundred ninety".