490731278 has 8 divisors (see below), whose sum is σ = 774838920. Its totient is φ = 232451640.

The previous prime is 490731247. The next prime is 490731313. The reversal of 490731278 is 872137094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6456953 + ... + 6457028.

It is an arithmetic number, because the mean of its divisors is an integer number (96854865).

Almost surely, 2^490731278 is an apocalyptic number.

490731278 is a deficient number, since it is larger than the sum of its proper divisors (284107642).

490731278 is a wasteful number, since it uses less digits than its factorization.

490731278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914002.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 490731278 is about 22152.4553492384. The cubic root of 490731278 is about 788.7655119877.

The spelling of 490731278 in words is "four hundred ninety million, seven hundred thirty-one thousand, two hundred seventy-eight".