499220040 has 128 divisors (see below), whose sum is σ = 1646853120. Its totient is φ = 120057600.

The previous prime is 499220023. The next prime is 499220047. The reversal of 499220040 is 40022994.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (499220047) 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, 171477 + ... + 174363.

It is an arithmetic number, because the mean of its divisors is an integer number (12866040).

Almost surely, 2^499220040 is an apocalyptic number.

499220040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499220040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823426560).

499220040 is an abundant number, since it is smaller than the sum of its proper divisors (1147633080).

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

499220040 is a wasteful number, since it uses less digits than its factorization.

499220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 499220040 is about 22343.2325324694. The cubic root of 499220040 is about 793.2876080952.

The spelling of 499220040 in words is "four hundred ninety-nine million, two hundred twenty thousand, forty".