499386690 has 192 divisors, whose sum is σ = 1509580800. Its totient is φ = 113270400.

The previous prime is 499386689. The next prime is 499386721. The reversal of 499386690 is 96683994.

It is a happy number.

499386690 is a `hidden beast` number, since 499 + 3 + 8 + 66 + 90 = 666.

It is a super-3 number, since 3×499386690³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2614495 + ... + 2614685.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^499386690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499386690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754790400).

499386690 is an abundant number, since it is smaller than the sum of its proper divisors (1010194110).

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

499386690 is a wasteful number, since it uses less digits than its factorization.

499386690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 499386690 is about 22346.9615384284. The cubic root of 499386690 is about 793.3758702251.

The spelling of 499386690 in words is "four hundred ninety-nine million, three hundred eighty-six thousand, six hundred ninety".