1641303312 has 40 divisors (see below), whose sum is σ = 4625492640. Its totient is φ = 497364480.

The previous prime is 1641303259. The next prime is 1641303317. The reversal of 1641303312 is 2133031461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1641303317) 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, 1553737 + ... + 1554792.

It is an arithmetic number, because the mean of its divisors is an integer number (115637316).

Almost surely, 2^1641303312 is an apocalyptic number.

1641303312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1641303312 is an abundant number, since it is smaller than the sum of its proper divisors (2984189328).

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

1641303312 is a wasteful number, since it uses less digits than its factorization.

1641303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108551 (or 3108545 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1641303312 is about 40513.0017648656. The cubic root of 1641303312 is about 1179.5860158421.

Adding to 1641303312 its reverse (2133031461), we get a palindrome (3774334773).

The spelling of 1641303312 in words is "one billion, six hundred forty-one million, three hundred three thousand, three hundred twelve".