641346 has 16 divisors (see below), whose sum is σ = 1293600. Its totient is φ = 211968.

The previous prime is 641327. The next prime is 641371. The reversal of 641346 is 643146.

It is a super-2 number, since 2×641346² = 822649383432, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

641346 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 7 ways as a sum of consecutive naturals, for example, 450 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (80850).

2⁶⁴¹³⁴⁶ is an apocalyptic number.

641346 is an abundant number, since it is smaller than the sum of its proper divisors (652254).

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

641346 is a wasteful number, since it uses less digits than its factorization.

641346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 1728, while the sum is 24.

The square root of 641346 is about 800.8408081510. The cubic root of 641346 is about 86.2377592374.

The spelling of 641346 in words is "six hundred forty-one thousand, three hundred forty-six".