490864892 has 24 divisors (see below), whose sum is σ = 985850880. Its totient is φ = 209487600.

The previous prime is 490864889. The next prime is 490864901. The reversal of 490864892 is 298468094.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 490864892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29984 + ... + 43367.

It is an arithmetic number, because the mean of its divisors is an integer number (41077120).

Almost surely, 2^490864892 is an apocalyptic number.

It is an amenable number.

490864892 is an abundant number, since it is smaller than the sum of its proper divisors (494985988).

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

490864892 is a wasteful number, since it uses less digits than its factorization.

490864892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73601 (or 73599 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 490864892 is about 22155.4709270645. The cubic root of 490864892 is about 788.8370926105.

The spelling of 490864892 in words is "four hundred ninety million, eight hundred sixty-four thousand, eight hundred ninety-two".