497681280 has 256 divisors, whose sum is σ = 1788998400. Its totient is φ = 130738176.

The previous prime is 497681279. The next prime is 497681333. The reversal of 497681280 is 82186794.

497681280 is a `hidden beast` number, since 497 + 6 + 81 + 2 + 80 = 666.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1434067 + ... + 1434413.

It is an arithmetic number, because the mean of its divisors is an integer number (6988275).

Almost surely, 2^497681280 is an apocalyptic number.

497681280 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 497681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894499200).

497681280 is an abundant number, since it is smaller than the sum of its proper divisors (1291317120).

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

497681280 is a wasteful number, since it uses less digits than its factorization.

497681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 497681280 is about 22308.7713691274. The cubic root of 497681280 is about 792.4717116487.

The spelling of 497681280 in words is "four hundred ninety-seven million, six hundred eighty-one thousand, two hundred eighty".