499718142 has 144 divisors (see below), whose sum is σ = 1381816800. Its totient is φ = 127733760.

The previous prime is 499718123. The next prime is 499718143. The reversal of 499718142 is 241817994.

It is a happy number.

499718142 is a `hidden beast` number, since 499 + 7 + 18 + 142 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499718143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1112734 + ... + 1113182.

It is an arithmetic number, because the mean of its divisors is an integer number (9595950).

Almost surely, 2^499718142 is an apocalyptic number.

499718142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 499718142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690908400).

499718142 is an abundant number, since it is smaller than the sum of its proper divisors (882098658).

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

499718142 is a wasteful number, since it uses less digits than its factorization.

499718142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 545 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 499718142 is about 22354.3763500573. The cubic root of 499718142 is about 793.5513573891.

The spelling of 499718142 in words is "four hundred ninety-nine million, seven hundred eighteen thousand, one hundred forty-two".