498921696 has 144 divisors (see below), whose sum is σ = 1746317664. Its totient is φ = 131576832.

The previous prime is 498921677. The next prime is 498921697. The reversal of 498921696 is 696129894.

498921696 is a `hidden beast` number, since 498 + 92 + 1 + 69 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498921697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16690 + ... + 35726.

It is an arithmetic number, because the mean of its divisors is an integer number (12127206).

Almost surely, 2^498921696 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 498921696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873158832).

498921696 is an abundant number, since it is smaller than the sum of its proper divisors (1247395968).

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

498921696 is a wasteful number, since it uses less digits than its factorization.

498921696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19073 (or 19062 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 498921696 is about 22336.5551506941. Note that the first 3 decimals coincide. The cubic root of 498921696 is about 793.1295483609.

The spelling of 498921696 in words is "four hundred ninety-eight million, nine hundred twenty-one thousand, six hundred ninety-six".