490381886 has 8 divisors (see below), whose sum is σ = 736275864. Its totient is φ = 244956600.

The previous prime is 490381883. The next prime is 490381897. The reversal of 490381886 is 688183094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 490381886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490381883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114545 + ... + 118748.

It is an arithmetic number, because the mean of its divisors is an integer number (92034483).

Almost surely, 2^490381886 is an apocalyptic number.

490381886 is a deficient number, since it is larger than the sum of its proper divisors (245893978).

490381886 is a wasteful number, since it uses less digits than its factorization.

490381886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234346.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 490381886 is about 22144.5678666349. The cubic root of 490381886 is about 788.5782718404.

The spelling of 490381886 in words is "four hundred ninety million, three hundred eighty-one thousand, eight hundred eighty-six".