490042845 has 16 divisors (see below), whose sum is σ = 871187520. Its totient is φ = 261356112.

The previous prime is 490042801. The next prime is 490042859. The reversal of 490042845 is 548240094.

It is not a de Polignac number, because 490042845 - 2¹⁴ = 490026461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814839 + ... + 1815108.

It is an arithmetic number, because the mean of its divisors is an integer number (54449220).

Almost surely, 2^490042845 is an apocalyptic number.

490042845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

490042845 is a deficient number, since it is larger than the sum of its proper divisors (381144675).

490042845 is a wasteful number, since it uses less digits than its factorization.

490042845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629961 (or 3629955 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 490042845 is about 22136.9113699269. The cubic root of 490042845 is about 788.3964937791.

The spelling of 490042845 in words is "four hundred ninety million, forty-two thousand, eight hundred forty-five".