490931906 has 8 divisors (see below), whose sum is σ = 736678800. Its totient is φ = 245372308.

The previous prime is 490931893. The next prime is 490931929. The reversal of 490931906 is 609139094.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40076 + ... + 50871.

It is an arithmetic number, because the mean of its divisors is an integer number (92084850).

Almost surely, 2^490931906 is an apocalyptic number.

490931906 is a deficient number, since it is larger than the sum of its proper divisors (245746894).

490931906 is a wasteful number, since it uses less digits than its factorization.

490931906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93648.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 490931906 is about 22156.9832332834. The cubic root of 490931906 is about 788.8729889262.

The spelling of 490931906 in words is "four hundred ninety million, nine hundred thirty-one thousand, nine hundred six".