491412330 has 48 divisors (see below), whose sum is σ = 1289419560. Its totient is φ = 129838464.

The previous prime is 491412323. The next prime is 491412331. The reversal of 491412330 is 33214194.

It can be written as a sum of positive squares in 4 ways, for example, as 308107809 + 183304521 = 17553^2 + 13539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 491412294 and 491412303.

It is not an unprimeable number, because it can be changed into a prime (491412331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15237 + ... + 34856.

Almost surely, 2^491412330 is an apocalyptic number.

491412330 is an abundant number, since it is smaller than the sum of its proper divisors (798007230).

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

491412330 is a wasteful number, since it uses less digits than its factorization.

491412330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50215 (or 50212 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 491412330 is about 22167.8219498443. The cubic root of 491412330 is about 789.1302343488.

The spelling of 491412330 in words is "four hundred ninety-one million, four hundred twelve thousand, three hundred thirty".