1641194492 has 12 divisors (see below), whose sum is σ = 3282389040. Its totient is φ = 703369056.

The previous prime is 1641194491. The next prime is 1641194531. The reversal of 1641194492 is 2944911461.

1641194492 is an admirable number.

It is a super-2 number, since 2×1641194492² = 5387038721142276128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641194491) 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, 29307017 + ... + 29307072.

It is an arithmetic number, because the mean of its divisors is an integer number (273532420).

Almost surely, 2^1641194492 is an apocalyptic number.

It is an amenable number.

1641194492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1641194492 is a wasteful number, since it uses less digits than its factorization.

1641194492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58614100 (or 58614098 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 1641194492 is about 40511.6587169669. The cubic root of 1641194492 is about 1179.5599460340.

The spelling of 1641194492 in words is "one billion, six hundred forty-one million, one hundred ninety-four thousand, four hundred ninety-two".