491023102 has 8 divisors (see below), whose sum is σ = 737830800. Its totient is φ = 245079504.

The previous prime is 491023079. The next prime is 491023109. The reversal of 491023102 is 201320194.

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

It is a super-2 number, since 2×491023102² = 482207373395404808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491023109) 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, 214602 + ... + 216877.

It is an arithmetic number, because the mean of its divisors is an integer number (92228850).

Almost surely, 2^491023102 is an apocalyptic number.

491023102 is a deficient number, since it is larger than the sum of its proper divisors (246807698).

491023102 is a wasteful number, since it uses less digits than its factorization.

491023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432050.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 491023102 is about 22159.0410893612. The cubic root of 491023102 is about 788.9218331794.

Adding to 491023102 its reverse (201320194), we get a palindrome (692343296).

The spelling of 491023102 in words is "four hundred ninety-one million, twenty-three thousand, one hundred two".