499999998132 has 144 divisors (see below), whose sum is σ = 1353350233872. Its totient is φ = 155094220800.

The previous prime is 499999998109. The next prime is 499999998133. The reversal of 499999998132 is 231899999994.

499999998132 is a `hidden beast` number, since 499 + 9 + 9 + 9 + 9 + 98 + 1 + 32 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1908466596 + 498091531536 = 43686^2 + 705756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499999998133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71292658 + ... + 71299670.

It is an arithmetic number, because the mean of its divisors is an integer number (9398265513).

Almost surely, 2^499999998132 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 499999998132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676675116936).

499999998132 is an abundant number, since it is smaller than the sum of its proper divisors (853350235740).

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

499999998132 is a wasteful number, since it uses less digits than its factorization.

499999998132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8338 (or 8333 counting only the distinct ones).

The product of its digits is 918330048, while the sum is 81.

The spelling of 499999998132 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-eight thousand, one hundred thirty-two".