641340084 has 48 divisors (see below), whose sum is σ = 1865719296. Its totient is φ = 166581600.

The previous prime is 641340067. The next prime is 641340097. The reversal of 641340084 is 480043146.

It is a super-2 number, since 2×641340084² = 822634206690254112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346122 + ... + 347969.

It is an arithmetic number, because the mean of its divisors is an integer number (38869152).

Almost surely, 2^641340084 is an apocalyptic number.

It is an amenable number.

641340084 is an abundant number, since it is smaller than the sum of its proper divisors (1224379212).

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

641340084 is a wasteful number, since it uses less digits than its factorization.

641340084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694116 (or 694114 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 641340084 is about 25324.6931669468. The cubic root of 641340084 is about 862.3749407419.

It can be divided in two parts, 641 and 340084, that added together give a triangular number (340725 = T₈₂₅).

The spelling of 641340084 in words is "six hundred forty-one million, three hundred forty thousand, eighty-four".