499698690 has 96 divisors (see below), whose sum is σ = 1288586880. Its totient is φ = 124014528.

The previous prime is 499698677. The next prime is 499698691. The reversal of 499698690 is 96896994.

It is a super-2 number, since 2×499698690² = 499397561575432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499698691) 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, 13505352 + ... + 13505388.

It is an arithmetic number, because the mean of its divisors is an integer number (13422780).

Almost surely, 2^499698690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499698690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644293440).

499698690 is an abundant number, since it is smaller than the sum of its proper divisors (788888190).

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

499698690 is an equidigital number, since it uses as much as digits as its factorization.

499698690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 60.

The square root of 499698690 is about 22353.9412632314. The cubic root of 499698690 is about 793.5410606772.

The spelling of 499698690 in words is "four hundred ninety-nine million, six hundred ninety-eight thousand, six hundred ninety".