490353481 has 4 divisors (see below), whose sum is σ = 502313364. Its totient is φ = 478393600.

The previous prime is 490353473. The next prime is 490353499. The reversal of 490353481 is 184353094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20331081 + 470022400 = 4509^2 + 21680^2 .

It is a cyclic number.

It is not a de Polignac number, because 490353481 - 2³ = 490353473 is a prime.

It is a super-2 number, since 2×490353481² = 480893072657634722, 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 490353481.

It is not an unprimeable number, because it can be changed into a prime (490353401) 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, 5979880 + ... + 5979961.

It is an arithmetic number, because the mean of its divisors is an integer number (125578341).

Almost surely, 2^490353481 is an apocalyptic number.

490353481 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

490353481 is a deficient number, since it is larger than the sum of its proper divisors (11959883).

490353481 is a wasteful number, since it uses less digits than its factorization.

490353481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11959882.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 490353481 is about 22143.9265036714. The cubic root of 490353481 is about 788.5630456130.

The spelling of 490353481 in words is "four hundred ninety million, three hundred fifty-three thousand, four hundred eighty-one".