490691264 has 112 divisors (see below), whose sum is σ = 1240657920. Its totient is φ = 187453440.

The previous prime is 490691263. The next prime is 490691287. The reversal of 490691264 is 462196094.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (490691263) 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, 143009 + ... + 146399.

Almost surely, 2^490691264 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 490691264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620328960).

490691264 is an abundant number, since it is smaller than the sum of its proper divisors (749966656).

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

490691264 is a wasteful number, since it uses less digits than its factorization.

490691264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 490691264 is about 22151.5521803778. The cubic root of 490691264 is about 788.7440728807.

The spelling of 490691264 in words is "four hundred ninety million, six hundred ninety-one thousand, two hundred sixty-four".