641292 has 12 divisors (see below), whose sum is σ = 1496376. Its totient is φ = 213760.

The previous prime is 641287. The next prime is 641299. The reversal of 641292 is 292146.

641292 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×641292² = 822510858528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 641292.

It is not an unprimeable number, because it can be changed into a prime (641299) by changing a digit.

641292 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26709 + ... + 26732.

It is an arithmetic number, because the mean of its divisors is an integer number (124698).

2⁶⁴¹²⁹² is an apocalyptic number.

It is an amenable number.

641292 is an abundant number, since it is smaller than the sum of its proper divisors (855084).

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

641292 is a wasteful number, since it uses less digits than its factorization.

641292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53448 (or 53446 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 641292 is about 800.8070928757. The cubic root of 641292 is about 86.2353388228.

The spelling of 641292 in words is "six hundred forty-one thousand, two hundred ninety-two".