491966750 has 32 divisors (see below), whose sum is σ = 1004691168. Its totient is φ = 178896000.

The previous prime is 491966743. The next prime is 491966771. The reversal of 491966750 is 57669194.

It is a junction number, because it is equal to n+sod(n) for n = 491966695 and 491966704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86699 + ... + 92198.

It is an arithmetic number, because the mean of its divisors is an integer number (31396599).

Almost surely, 2^491966750 is an apocalyptic number.

491966750 is an abundant number, since it is smaller than the sum of its proper divisors (512724418).

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

491966750 is a wasteful number, since it uses less digits than its factorization.

491966750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178925 (or 178915 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 491966750 is about 22180.3234872713. The cubic root of 491966750 is about 789.4268929968.

The spelling of 491966750 in words is "four hundred ninety-one million, nine hundred sixty-six thousand, seven hundred fifty".