490740778 has 16 divisors (see below), whose sum is σ = 845295840. Its totient is φ = 211323600.

The previous prime is 490740773. The next prime is 490740779. The reversal of 490740778 is 877047094.

It is a super-2 number, since 2×490740778² = 481653022384090568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490740773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586593 + ... + 587428.

It is an arithmetic number, because the mean of its divisors is an integer number (52830990).

Almost surely, 2^490740778 is an apocalyptic number.

490740778 is a deficient number, since it is larger than the sum of its proper divisors (354555062).

490740778 is a wasteful number, since it uses less digits than its factorization.

490740778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174053.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 490740778 is about 22152.6697713842. The cubic root of 490740778 is about 788.7706018229.

The spelling of 490740778 in words is "four hundred ninety million, seven hundred forty thousand, seven hundred seventy-eight".