497518240 has 48 divisors (see below), whose sum is σ = 1184018472. Its totient is φ = 197545984.

The previous prime is 497518199. The next prime is 497518253. The reversal of 497518240 is 42815794.

It can be written as a sum of positive squares in 4 ways, for example, as 246992656 + 250525584 = 15716^2 + 15828^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 497518193 and 497518202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10572 + ... + 33268.

Almost surely, 2^497518240 is an apocalyptic number.

497518240 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 497518240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592009236).

497518240 is an abundant number, since it is smaller than the sum of its proper divisors (686500232).

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

497518240 is a wasteful number, since it uses less digits than its factorization.

497518240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22849 (or 22841 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 497518240 is about 22305.1169017336. The cubic root of 497518240 is about 792.3851644917.

The spelling of 497518240 in words is "four hundred ninety-seven million, five hundred eighteen thousand, two hundred forty".