1641431348 has 12 divisors (see below), whose sum is σ = 2908866240. Its totient is φ = 810326712.

The previous prime is 1641431347. The next prime is 1641431399. The reversal of 1641431348 is 8431341461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641431347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2596886 + ... + 2597517.

It is an arithmetic number, because the mean of its divisors is an integer number (242405520).

Almost surely, 2^1641431348 is an apocalyptic number.

It is an amenable number.

1641431348 is a deficient number, since it is larger than the sum of its proper divisors (1267434892).

1641431348 is a wasteful number, since it uses less digits than its factorization.

1641431348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194486 (or 5194484 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 1641431348 is about 40514.5819181193. The cubic root of 1641431348 is about 1179.6166877167.

The spelling of 1641431348 in words is "one billion, six hundred forty-one million, four hundred thirty-one thousand, three hundred forty-eight".