497992440 has 96 divisors (see below), whose sum is σ = 1642188240. Its totient is φ = 120721920.

The previous prime is 497992409. The next prime is 497992457. The reversal of 497992440 is 44299794.

It is a self number, because there is not a number n which added to its sum of digits gives 497992440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2629 + ... + 31668.

Almost surely, 2^497992440 is an apocalyptic number.

497992440 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 497992440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821094120).

497992440 is an abundant number, since it is smaller than the sum of its proper divisors (1144195800).

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

497992440 is a wasteful number, since it uses less digits than its factorization.

497992440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34333 (or 34318 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 497992440 is about 22315.7442179283. The cubic root of 497992440 is about 792.6368334750.

The spelling of 497992440 in words is "four hundred ninety-seven million, nine hundred ninety-two thousand, four hundred forty".