491074650 has 240 divisors, whose sum is σ = 1518884928. Its totient is φ = 116640000.

The previous prime is 491074643. The next prime is 491074651. The reversal of 491074650 is 56470194.

It is not an unprimeable number, because it can be changed into a prime (491074651) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3252075 + ... + 3252225.

Almost surely, 2^491074650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491074650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759442464).

491074650 is an abundant number, since it is smaller than the sum of its proper divisors (1027810278).

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

491074650 is a wasteful number, since it uses less digits than its factorization.

491074650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 491074650 is about 22160.2041958101. The cubic root of 491074650 is about 788.9494394295.

The spelling of 491074650 in words is "four hundred ninety-one million, seventy-four thousand, six hundred fifty".