490349986 has 16 divisors (see below), whose sum is σ = 884842560. Its totient is φ = 199089360.

The previous prime is 490349983. The next prime is 490349987. The reversal of 490349986 is 689943094.

It is not an unprimeable number, because it can be changed into a prime (490349983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921445 + ... + 921976.

It is an arithmetic number, because the mean of its divisors is an integer number (55302660).

Almost surely, 2^490349986 is an apocalyptic number.

490349986 is a deficient number, since it is larger than the sum of its proper divisors (394492574).

490349986 is a wasteful number, since it uses less digits than its factorization.

490349986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843449.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 490349986 is about 22143.8475879871. The cubic root of 490349986 is about 788.5611721112.

The spelling of 490349986 in words is "four hundred ninety million, three hundred forty-nine thousand, nine hundred eighty-six".