490402281 has 8 divisors (see below), whose sum is σ = 692332704. Its totient is φ = 307703360.

The previous prime is 490402273. The next prime is 490402301. The reversal of 490402281 is 182204094.

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

It is a cyclic number.

It is not a de Polignac number, because 490402281 - 2³ = 490402273 is a prime.

It is a super-2 number, since 2×490402281² = 480988794420005922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490404281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807815 + ... + 4807916.

It is an arithmetic number, because the mean of its divisors is an integer number (86541588).

Almost surely, 2^490402281 is an apocalyptic number.

It is an amenable number.

490402281 is a deficient number, since it is larger than the sum of its proper divisors (201930423).

490402281 is a wasteful number, since it uses less digits than its factorization.

490402281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615751.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 490402281 is about 22145.0283585278. The cubic root of 490402281 is about 788.5892040216.

The spelling of 490402281 in words is "four hundred ninety million, four hundred two thousand, two hundred eighty-one".