491161246 has 16 divisors (see below), whose sum is σ = 788126976. Its totient is φ = 228750336.

The previous prime is 491161243. The next prime is 491161259. The reversal of 491161246 is 642161194.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491161243) 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, 71166 + ... + 77761.

It is an arithmetic number, because the mean of its divisors is an integer number (49257936).

Almost surely, 2^491161246 is an apocalyptic number.

491161246 is a deficient number, since it is larger than the sum of its proper divisors (296965730).

491161246 is a wasteful number, since it uses less digits than its factorization.

491161246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149043.

The product of its digits is 10368, while the sum is 34.

The square root of 491161246 is about 22162.1579725441. The cubic root of 491161246 is about 788.9958110963.

The spelling of 491161246 in words is "four hundred ninety-one million, one hundred sixty-one thousand, two hundred forty-six".