641803032 has 96 divisors (see below), whose sum is σ = 1885774800. Its totient is φ = 196017408.

The previous prime is 641803007. The next prime is 641803039. The reversal of 641803032 is 230308146.

It is a happy number.

It is a super-2 number, since 2×641803032² = 823822263768786048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641802987 and 641803005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641803039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127638 + ... + 132570.

Almost surely, 2^641803032 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 641803032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942887400).

641803032 is an abundant number, since it is smaller than the sum of its proper divisors (1243971768).

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

641803032 is a wasteful number, since it uses less digits than its factorization.

641803032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 641803032 is about 25333.8317670265. The cubic root of 641803032 is about 862.5823911211.

The spelling of 641803032 in words is "six hundred forty-one million, eight hundred three thousand, thirty-two".