491334012 has 120 divisors (see below), whose sum is σ = 1393931616. Its totient is φ = 150014592.

The previous prime is 491334001. The next prime is 491334029. The reversal of 491334012 is 210433194.

It is a super-2 number, since 2×491334012² = 482818222696032288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 660913 + ... + 661655.

Almost surely, 2^491334012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491334012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696965808).

491334012 is an abundant number, since it is smaller than the sum of its proper divisors (902597604).

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

491334012 is a wasteful number, since it uses less digits than its factorization.

491334012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 918 counting only the distinct ones).

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

The square root of 491334012 is about 22166.0554000932. The cubic root of 491334012 is about 789.0883100275.

The spelling of 491334012 in words is "four hundred ninety-one million, three hundred thirty-four thousand, twelve".