490781722 has 16 divisors (see below), whose sum is σ = 750199752. Its totient is φ = 240736320.

The previous prime is 490781699. The next prime is 490781729. The reversal of 490781722 is 227187094.

It can be written as a sum of positive squares in 4 ways, for example, as 399560121 + 91221601 = 19989^2 + 9551^2 .

It is not an unprimeable number, because it can be changed into a prime (490781729) 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 7 ways as a sum of consecutive naturals, for example, 43368 + ... + 53500.

Almost surely, 2^490781722 is an apocalyptic number.

490781722 is a deficient number, since it is larger than the sum of its proper divisors (259418030).

490781722 is a wasteful number, since it uses less digits than its factorization.

490781722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10593.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 490781722 is about 22153.5938845145. The cubic root of 490781722 is about 788.7925377253.

The spelling of 490781722 in words is "four hundred ninety million, seven hundred eighty-one thousand, seven hundred twenty-two".