491378932 has 24 divisors (see below), whose sum is σ = 960970752. Its totient is φ = 217905600.

The previous prime is 491378911. The next prime is 491378957. The reversal of 491378932 is 239873194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134388 + ... + 137995.

It is an arithmetic number, because the mean of its divisors is an integer number (40040448).

Almost surely, 2^491378932 is an apocalyptic number.

It is an amenable number.

491378932 is a deficient number, since it is larger than the sum of its proper divisors (469591820).

491378932 is a wasteful number, since it uses less digits than its factorization.

491378932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272439 (or 272437 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 491378932 is about 22167.0686379593. The cubic root of 491378932 is about 789.1123566474.

It can be divided in two parts, 4913 and 78932, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 491378932 in words is "four hundred ninety-one million, three hundred seventy-eight thousand, nine hundred thirty-two".