490490078 has 16 divisors (see below), whose sum is σ = 810758256. Its totient is φ = 221114880.

The previous prime is 490490071. The next prime is 490490089. The reversal of 490490078 is 870094094.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490490071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218243 + ... + 220478.

It is an arithmetic number, because the mean of its divisors is an integer number (50672391).

Almost surely, 2^490490078 is an apocalyptic number.

490490078 is a deficient number, since it is larger than the sum of its proper divisors (320268178).

490490078 is a wasteful number, since it uses less digits than its factorization.

490490078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438779.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 490490078 is about 22147.0105883390. The cubic root of 490490078 is about 788.6362617384.

The spelling of 490490078 in words is "four hundred ninety million, four hundred ninety thousand, seventy-eight".