641053400 has 96 divisors (see below), whose sum is σ = 1625937600. Its totient is φ = 233625600.

The previous prime is 641053397. The next prime is 641053471. The reversal of 641053400 is 4350146.

It is a happy number.

641053400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203840 + ... + 206960.

It is an arithmetic number, because the mean of its divisors is an integer number (16936850).

Almost surely, 2^641053400 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 641053400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812968800).

641053400 is an abundant number, since it is smaller than the sum of its proper divisors (984884200).

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

641053400 is a wasteful number, since it uses less digits than its factorization.

641053400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 641053400 is about 25319.0323669764. The cubic root of 641053400 is about 862.2464254916.

The spelling of 641053400 in words is "six hundred forty-one million, fifty-three thousand, four hundred".