498791520 has 144 divisors (see below), whose sum is σ = 1765305360. Its totient is φ = 133000704.

The previous prime is 498791507. The next prime is 498791537. The reversal of 498791520 is 25197894.

498791520 is a `hidden beast` number, since 49 + 87 + 9 + 1 + 520 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32466 + ... + 45294.

It is an arithmetic number, because the mean of its divisors is an integer number (12259065).

Almost surely, 2^498791520 is an apocalyptic number.

498791520 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 498791520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882652680).

498791520 is an abundant number, since it is smaller than the sum of its proper divisors (1266513840).

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

498791520 is a wasteful number, since it uses less digits than its factorization.

498791520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12859 (or 12839 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 498791520 is about 22333.6409929057. The cubic root of 498791520 is about 793.0605626438.

The spelling of 498791520 in words is "four hundred ninety-eight million, seven hundred ninety-one thousand, five hundred twenty".