491629814 has 16 divisors (see below), whose sum is σ = 797741952. Its totient is φ = 225885888.

The previous prime is 491629813. The next prime is 491629819. The reversal of 491629814 is 418926194.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491629813) 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, 36599 + ... + 48194.

It is an arithmetic number, because the mean of its divisors is an integer number (49858872).

Almost surely, 2^491629814 is an apocalyptic number.

491629814 is a deficient number, since it is larger than the sum of its proper divisors (306112138).

491629814 is a wasteful number, since it uses less digits than its factorization.

491629814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85031.

The product of its digits is 124416, while the sum is 44.

The square root of 491629814 is about 22172.7268056953. The cubic root of 491629814 is about 789.2466321118.

The spelling of 491629814 in words is "four hundred ninety-one million, six hundred twenty-nine thousand, eight hundred fourteen".