1641305416 has 32 divisors (see below), whose sum is σ = 3194553600. Its totient is φ = 789721920.

The previous prime is 1641305387. The next prime is 1641305423. The reversal of 1641305416 is 6145031461.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25906 + ... + 62878.

It is an arithmetic number, because the mean of its divisors is an integer number (99829800).

Almost surely, 2^1641305416 is an apocalyptic number.

It is an amenable number.

1641305416 is a deficient number, since it is larger than the sum of its proper divisors (1553248184).

1641305416 is a wasteful number, since it uses less digits than its factorization.

1641305416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37189 (or 37185 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1641305416 is about 40513.0277318297. The cubic root of 1641305416 is about 1179.5865198822.

Adding to 1641305416 its reverse (6145031461), we get a palindrome (7786336877).

The spelling of 1641305416 in words is "one billion, six hundred forty-one million, three hundred five thousand, four hundred sixteen".