491277204 has 48 divisors (see below), whose sum is σ = 1389474240. Its totient is φ = 148871520.

The previous prime is 491277191. The next prime is 491277209. The reversal of 491277204 is 402772194.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491277209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205579 + ... + 207954.

It is an arithmetic number, because the mean of its divisors is an integer number (28947380).

Almost surely, 2^491277204 is an apocalyptic number.

491277204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

491277204 is an abundant number, since it is smaller than the sum of its proper divisors (898197036).

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

491277204 is a wasteful number, since it uses less digits than its factorization.

491277204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413557 (or 413549 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 491277204 is about 22164.7739442567. The cubic root of 491277204 is about 789.0578974125.

The spelling of 491277204 in words is "four hundred ninety-one million, two hundred seventy-seven thousand, two hundred four".