497009856 has 224 divisors, whose sum is σ = 1581383680. Its totient is φ = 134784000.

The previous prime is 497009813. The next prime is 497009873. The reversal of 497009856 is 658900794.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×497009856² = 494037593922281472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3291381 + ... + 3291531.

Almost surely, 2^497009856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497009856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790691840).

497009856 is an abundant number, since it is smaller than the sum of its proper divisors (1084373824).

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

497009856 is a wasteful number, since it uses less digits than its factorization.

497009856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 497009856 is about 22293.7178595227. The cubic root of 497009856 is about 792.1151755772.

The spelling of 497009856 in words is "four hundred ninety-seven million, nine thousand, eight hundred fifty-six".