490646031 has 4 divisors (see below), whose sum is σ = 654194712. Its totient is φ = 327097352.

The previous prime is 490645999. The next prime is 490646071. The reversal of 490646031 is 130646094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490646031 - 2⁵ = 490645999 is a prime.

It is a super-2 number, since 2×490646031² = 481467055472105922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 490645983 and 490646001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490646071) 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, 81774336 + ... + 81774341.

It is an arithmetic number, because the mean of its divisors is an integer number (163548678).

Almost surely, 2^490646031 is an apocalyptic number.

490646031 is a deficient number, since it is larger than the sum of its proper divisors (163548681).

490646031 is a wasteful number, since it uses less digits than its factorization.

490646031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163548680.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 490646031 is about 22150.5311674461. The cubic root of 490646031 is about 788.7198360815.

The spelling of 490646031 in words is "four hundred ninety million, six hundred forty-six thousand, thirty-one".