499785612 has 12 divisors (see below), whose sum is σ = 1166166456. Its totient is φ = 166595200.

The previous prime is 499785589. The next prime is 499785617. The reversal of 499785612 is 216587994.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (499785617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20824389 + ... + 20824412.

It is an arithmetic number, because the mean of its divisors is an integer number (97180538).

Almost surely, 2^499785612 is an apocalyptic number.

It is an amenable number.

499785612 is an abundant number, since it is smaller than the sum of its proper divisors (666380844).

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

499785612 is a wasteful number, since it uses less digits than its factorization.

499785612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41648808 (or 41648806 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 499785612 is about 22355.8853995989. The cubic root of 499785612 is about 793.5870698546.

It can be divided in two parts, 4997 and 85612, that added together give a palindrome (90609).

The spelling of 499785612 in words is "four hundred ninety-nine million, seven hundred eighty-five thousand, six hundred twelve".