490920413 has 8 divisors (see below), whose sum is σ = 495901560. Its totient is φ = 485948160.

The previous prime is 490920389. The next prime is 490920421. The reversal of 490920413 is 314029094.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 316733209 + 174187204 = 17797^2 + 13198^2 .

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

It is not a de Polignac number, because 490920413 - 2²² = 486726109 is a prime.

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 490920413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490920473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186281 + ... + 188897.

It is an arithmetic number, because the mean of its divisors is an integer number (61987695).

Almost surely, 2^490920413 is an apocalyptic number.

It is an amenable number.

490920413 is a deficient number, since it is larger than the sum of its proper divisors (4981147).

490920413 is a wasteful number, since it uses less digits than its factorization.

490920413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 490920413 is about 22156.7238778661. The cubic root of 490920413 is about 788.8668328871.

The spelling of 490920413 in words is "four hundred ninety million, nine hundred twenty thousand, four hundred thirteen".