490223961 has 16 divisors (see below), whose sum is σ = 727009920. Its totient is φ = 326477520.

The previous prime is 490223947. The next prime is 490223969. The reversal of 490223961 is 169322094.

It is not a de Polignac number, because 490223961 - 2¹⁵ = 490191193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490223969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18676 + ... + 36458.

It is an arithmetic number, because the mean of its divisors is an integer number (45438120).

Almost surely, 2^490223961 is an apocalyptic number.

It is an amenable number.

490223961 is a deficient number, since it is larger than the sum of its proper divisors (236785959).

490223961 is a wasteful number, since it uses less digits than its factorization.

490223961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18813 (or 18807 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 490223961 is about 22141.0018066031. The cubic root of 490223961 is about 788.4936102068.

The spelling of 490223961 in words is "four hundred ninety million, two hundred twenty-three thousand, nine hundred sixty-one".