499969428 has 96 divisors (see below), whose sum is σ = 1379288064. Its totient is φ = 137991168.

The previous prime is 499969427. The next prime is 499969429. The reversal of 499969428 is 824969994.

It is an interprime number because it is at equal distance from previous prime (499969427) and next prime (499969429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499969427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349651 + ... + 351077.

It is an arithmetic number, because the mean of its divisors is an integer number (14367584).

Almost surely, 2^499969428 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 499969428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689644032).

499969428 is an abundant number, since it is smaller than the sum of its proper divisors (879318636).

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

499969428 is a wasteful number, since it uses less digits than its factorization.

499969428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 60.

The square root of 499969428 is about 22359.9961538458. The cubic root of 499969428 is about 793.6843489794.

The spelling of 499969428 in words is "four hundred ninety-nine million, nine hundred sixty-nine thousand, four hundred twenty-eight".