499901085 has 16 divisors (see below), whose sum is σ = 888713280. Its totient is φ = 266613840.

The previous prime is 499901047. The next prime is 499901119. The reversal of 499901085 is 580109994.

It is not a de Polignac number, because 499901085 - 2⁷ = 499900957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499901085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851351 + ... + 1851620.

It is an arithmetic number, because the mean of its divisors is an integer number (55544580).

Almost surely, 2^499901085 is an apocalyptic number.

499901085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

499901085 is a deficient number, since it is larger than the sum of its proper divisors (388812195).

499901085 is a wasteful number, since it uses less digits than its factorization.

499901085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702985 (or 3702979 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 499901085 is about 22358.4678589567. The cubic root of 499901085 is about 793.6481832739.

The spelling of 499901085 in words is "four hundred ninety-nine million, nine hundred one thousand, eighty-five".