491302238 has 16 divisors (see below), whose sum is σ = 843408384. Its totient is φ = 210264120.

The previous prime is 491302211. The next prime is 491302249. The reversal of 491302238 is 832203194.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13958 + ... + 34313.

It is an arithmetic number, because the mean of its divisors is an integer number (52713024).

Almost surely, 2^491302238 is an apocalyptic number.

491302238 is a deficient number, since it is larger than the sum of its proper divisors (352106146).

491302238 is a wasteful number, since it uses less digits than its factorization.

491302238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49007.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 491302238 is about 22165.3386619740. The cubic root of 491302238 is about 789.0712998526.

The spelling of 491302238 in words is "four hundred ninety-one million, three hundred two thousand, two hundred thirty-eight".