499298688 has 128 divisors (see below), whose sum is σ = 1684224000. Its totient is φ = 142649856.

The previous prime is 499298677. The next prime is 499298689. The reversal of 499298688 is 886892994.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499298689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13873 + ... + 34511.

It is an arithmetic number, because the mean of its divisors is an integer number (13158000).

Almost surely, 2^499298688 is an apocalyptic number.

499298688 is a gapful number since it is divisible by the number (48) 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 499298688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842112000).

499298688 is an abundant number, since it is smaller than the sum of its proper divisors (1184925312).

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

499298688 is a wasteful number, since it uses less digits than its factorization.

499298688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20669 (or 20651 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The square root of 499298688 is about 22344.9924591619. The cubic root of 499298688 is about 793.3292645477.

The spelling of 499298688 in words is "four hundred ninety-nine million, two hundred ninety-eight thousand, six hundred eighty-eight".