490795581 has 8 divisors (see below), whose sum is σ = 656486080. Its totient is φ = 326151072.

The previous prime is 490795579. The next prime is 490795649. The reversal of 490795581 is 185597094.

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

It is not a de Polignac number, because 490795581 - 2¹ = 490795579 is a prime.

It is a super-2 number, since 2×490795581² = 481760604658255122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490795581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490795181) 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, 260401 + ... + 262278.

It is an arithmetic number, because the mean of its divisors is an integer number (82060760).

Almost surely, 2^490795581 is an apocalyptic number.

It is an amenable number.

490795581 is a deficient number, since it is larger than the sum of its proper divisors (165690499).

490795581 is a wasteful number, since it uses less digits than its factorization.

490795581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522995.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 490795581 is about 22153.9066757987. The cubic root of 490795581 is about 788.7999624604.

The spelling of 490795581 in words is "four hundred ninety million, seven hundred ninety-five thousand, five hundred eighty-one".