497981850 has 96 divisors (see below), whose sum is σ = 1313594496. Its totient is φ = 124416000.

The previous prime is 497981819. The next prime is 497981879. The reversal of 497981850 is 58189794.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 497981793 and 497981802.

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 47 ways as a sum of consecutive naturals, for example, 1022307 + ... + 1022793.

It is an arithmetic number, because the mean of its divisors is an integer number (13683276).

Almost surely, 2^497981850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497981850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656797248).

497981850 is an abundant number, since it is smaller than the sum of its proper divisors (815612646).

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

497981850 is a wasteful number, since it uses less digits than its factorization.

497981850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 497981850 is about 22315.5069402422. The cubic root of 497981850 is about 792.6312148599.

The spelling of 497981850 in words is "four hundred ninety-seven million, nine hundred eighty-one thousand, eight hundred fifty".