1641305432 has 64 divisors (see below), whose sum is σ = 3396069600. Its totient is φ = 739031040.

The previous prime is 1641305429. The next prime is 1641305441. The reversal of 1641305432 is 2345031461.

It is a super-2 number, since 2×1641305432² = 5387767042225413248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1641305395 and 1641305404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758432 + ... + 760592.

Almost surely, 2^1641305432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641305432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698034800).

1641305432 is an abundant number, since it is smaller than the sum of its proper divisors (1754764168).

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

1641305432 is a wasteful number, since it uses less digits than its factorization.

1641305432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1641305432 is about 40513.0279292970. The cubic root of 1641305432 is about 1179.5865237152.

Adding to 1641305432 its reverse (2345031461), we get a palindrome (3986336893).

The spelling of 1641305432 in words is "one billion, six hundred forty-one million, three hundred five thousand, four hundred thirty-two".