491280250 has 32 divisors (see below), whose sum is σ = 949358592. Its totient is φ = 190170000.

The previous prime is 491280241. The next prime is 491280259. The reversal of 491280250 is 52082194.

491280250 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (491280241) and next prime (491280259).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (491280259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23946 + ... + 39445.

It is an arithmetic number, because the mean of its divisors is an integer number (29667456).

Almost surely, 2^491280250 is an apocalyptic number.

491280250 is a deficient number, since it is larger than the sum of its proper divisors (458078342).

491280250 is a wasteful number, since it uses less digits than its factorization.

491280250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63439 (or 63429 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 491280250 is about 22164.8426567842. The cubic root of 491280250 is about 789.0595281723.

The spelling of 491280250 in words is "four hundred ninety-one million, two hundred eighty thousand, two hundred fifty".