490936385 has 8 divisors (see below), whose sum is σ = 601658496. Its totient is φ = 384392560.

The previous prime is 490936379. The next prime is 490936393. The reversal of 490936385 is 583639094.

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

It is not a de Polignac number, because 490936385 - 2⁶ = 490936321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044311 + ... + 1044780.

It is an arithmetic number, because the mean of its divisors is an integer number (75207312).

Almost surely, 2^490936385 is an apocalyptic number.

It is an amenable number.

490936385 is a deficient number, since it is larger than the sum of its proper divisors (110722111).

490936385 is a wasteful number, since it uses less digits than its factorization.

490936385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089143.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 490936385 is about 22157.0843072819. The cubic root of 490936385 is about 788.8753880039.

The spelling of 490936385 in words is "four hundred ninety million, nine hundred thirty-six thousand, three hundred eighty-five".