641492 has 6 divisors (see below), whose sum is σ = 1122618. Its totient is φ = 320744.

The previous prime is 641491. The next prime is 641513. The reversal of 641492 is 294146.

641492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 364816 + 276676 = 604^2 + 526^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80183 + ... + 80190.

It is an arithmetic number, because the mean of its divisors is an integer number (187103).

2⁶⁴¹⁴⁹² is an apocalyptic number.

It is an amenable number.

641492 is a deficient number, since it is larger than the sum of its proper divisors (481126).

641492 is a wasteful number, since it uses less digits than its factorization.

641492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160377 (or 160375 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 641492 is about 800.9319571599. The cubic root of 641492 is about 86.2443026412.

The spelling of 641492 in words is "six hundred forty-one thousand, four hundred ninety-two".