499481780 has 24 divisors (see below), whose sum is σ = 1198756608. Its totient is φ = 171250848.

The previous prime is 499481707. The next prime is 499481791. The reversal of 499481780 is 87184994.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1783724 + ... + 1784003.

It is an arithmetic number, because the mean of its divisors is an integer number (49948192).

Almost surely, 2^499481780 is an apocalyptic number.

It is an amenable number.

499481780 is an abundant number, since it is smaller than the sum of its proper divisors (699274828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499481780 is a wasteful number, since it uses less digits than its factorization.

499481780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567743 (or 3567741 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 499481780 is about 22349.0890194656. The cubic root of 499481780 is about 793.4262235385.

The spelling of 499481780 in words is "four hundred ninety-nine million, four hundred eighty-one thousand, seven hundred eighty".