490469081 has 4 divisors (see below), whose sum is σ = 492046464. Its totient is φ = 488891700.

The previous prime is 490469053. The next prime is 490469087. The reversal of 490469081 is 180964094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 490469081 - 2¹⁰ = 490468057 is a prime.

It is a super-2 number, since 2×490469081² = 481119838833969122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490469087) 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, 788225 + ... + 788846.

It is an arithmetic number, because the mean of its divisors is an integer number (123011616).

Almost surely, 2^490469081 is an apocalyptic number.

It is an amenable number.

490469081 is a deficient number, since it is larger than the sum of its proper divisors (1577383).

490469081 is a wasteful number, since it uses less digits than its factorization.

490469081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577382.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 490469081 is about 22146.5365463767. The cubic root of 490469081 is about 788.6250082101.

The spelling of 490469081 in words is "four hundred ninety million, four hundred sixty-nine thousand, eighty-one".