498785520 has 80 divisors (see below), whose sum is σ = 1569363840. Its totient is φ = 131020032.

The previous prime is 498785477. The next prime is 498785531. The reversal of 498785520 is 25587894.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 498785520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571 + ... + 31589.

It is an arithmetic number, because the mean of its divisors is an integer number (19617048).

Almost surely, 2^498785520 is an apocalyptic number.

498785520 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 498785520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784681920).

498785520 is an abundant number, since it is smaller than the sum of its proper divisors (1070578320).

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

498785520 is a wasteful number, since it uses less digits than its factorization.

498785520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31102 (or 31096 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 498785520 is about 22333.5066659940. The cubic root of 498785520 is about 793.0573827031.

The spelling of 498785520 in words is "four hundred ninety-eight million, seven hundred eighty-five thousand, five hundred twenty".