490387642 has 8 divisors (see below), whose sum is σ = 735688800. Its totient is φ = 245158044.

The previous prime is 490387637. The next prime is 490387643. The reversal of 490387642 is 246783094.

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

It is not an unprimeable number, because it can be changed into a prime (490387643) 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 3 ways as a sum of consecutive naturals, for example, 5209 + ... + 31747.

It is an arithmetic number, because the mean of its divisors is an integer number (91961100).

Almost surely, 2^490387642 is an apocalyptic number.

490387642 is a deficient number, since it is larger than the sum of its proper divisors (245301158).

490387642 is a wasteful number, since it uses less digits than its factorization.

490387642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35780.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 490387642 is about 22144.6978304063. The cubic root of 490387642 is about 788.5813572173.

The spelling of 490387642 in words is "four hundred ninety million, three hundred eighty-seven thousand, six hundred forty-two".