490664772 has 72 divisors (see below), whose sum is σ = 1364178816. Its totient is φ = 147754944.

The previous prime is 490664737. The next prime is 490664821. The reversal of 490664772 is 277466094.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10843 + ... + 33149.

It is an arithmetic number, because the mean of its divisors is an integer number (18946928).

Almost surely, 2^490664772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490664772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682089408).

490664772 is an abundant number, since it is smaller than the sum of its proper divisors (873514044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490664772 is a wasteful number, since it uses less digits than its factorization.

490664772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22377 (or 22372 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 490664772 is about 22150.9542006659. The cubic root of 490664772 is about 788.7298780869.

The spelling of 490664772 in words is "four hundred ninety million, six hundred sixty-four thousand, seven hundred seventy-two".