490871268 has 36 divisors (see below), whose sum is σ = 1261849680. Its totient is φ = 160849776.

The previous prime is 490871263. The next prime is 490871281. The reversal of 490871268 is 862178094.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (490871261) 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 11 ways as a sum of consecutive naturals, for example, 113430 + ... + 117677.

It is an arithmetic number, because the mean of its divisors is an integer number (35051380).

Almost surely, 2^490871268 is an apocalyptic number.

It is an amenable number.

490871268 is an abundant number, since it is smaller than the sum of its proper divisors (770978412).

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

490871268 is a wasteful number, since it uses less digits than its factorization.

490871268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231176 (or 231171 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 490871268 is about 22155.6148188219. The cubic root of 490871268 is about 788.8405080809.

It can be divided in two parts, 4908 and 71268, that added together give a square (76176 = 276²).

The spelling of 490871268 in words is "four hundred ninety million, eight hundred seventy-one thousand, two hundred sixty-eight".