497781504 has 144 divisors (see below), whose sum is σ = 1606093440. Its totient is φ = 150819840.

The previous prime is 497781503. The next prime is 497781521. The reversal of 497781504 is 405187794.

It is a happy number.

497781504 is a `hidden beast` number, since 497 + 7 + 8 + 150 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 497781504.

It is not an unprimeable number, because it can be changed into a prime (497781503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72759 + ... + 79305.

Almost surely, 2^497781504 is an apocalyptic number.

497781504 is a gapful number since it is divisible by the number (44) 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 497781504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803046720).

497781504 is an abundant number, since it is smaller than the sum of its proper divisors (1108311936).

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

497781504 is a wasteful number, since it uses less digits than its factorization.

497781504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 497781504 is about 22311.0175473912. The cubic root of 497781504 is about 792.5249045635.

The spelling of 497781504 in words is "four hundred ninety-seven million, seven hundred eighty-one thousand, five hundred four".