641202760 has 128 divisors (see below), whose sum is σ = 1681689600. Its totient is φ = 217728000.

The previous prime is 641202739. The next prime is 641202761. The reversal of 641202760 is 67202146.

It is a super-2 number, since 2×641202760² = 822281958863235200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641202761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394750 + ... + 396370.

It is an arithmetic number, because the mean of its divisors is an integer number (13138200).

Almost surely, 2^641202760 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 641202760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840844800).

641202760 is an abundant number, since it is smaller than the sum of its proper divisors (1040486840).

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

641202760 is a wasteful number, since it uses less digits than its factorization.

641202760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 641202760 is about 25321.9817549891. The cubic root of 641202760 is about 862.3133856571.

It can be divided in two parts, 641 and 202760, that added together give a square (203401 = 451²).

The spelling of 641202760 in words is "six hundred forty-one million, two hundred two thousand, seven hundred sixty".