499181064 has 128 divisors (see below), whose sum is σ = 1364688000. Its totient is φ = 151568384.

The previous prime is 499180999. The next prime is 499181069. The reversal of 499181064 is 460181994.

It is not an unprimeable number, because it can be changed into a prime (499181069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2142292 + ... + 2142524.

It is an arithmetic number, because the mean of its divisors is an integer number (10661625).

Almost surely, 2^499181064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499181064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682344000).

499181064 is an abundant number, since it is smaller than the sum of its proper divisors (865506936).

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

499181064 is a wasteful number, since it uses less digits than its factorization.

499181064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 499181064 is about 22342.3603050349. The cubic root of 499181064 is about 793.2669625681.

The spelling of 499181064 in words is "four hundred ninety-nine million, one hundred eighty-one thousand, sixty-four".