641604102 has 16 divisors (see below), whose sum is σ = 1285985280. Its totient is φ = 213405192.

The previous prime is 641604101. The next prime is 641604107. The reversal of 641604102 is 201406146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641604101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 112702 + ... + 118257.

It is an arithmetic number, because the mean of its divisors is an integer number (80374080).

Almost surely, 2^641604102 is an apocalyptic number.

641604102 is an abundant number, since it is smaller than the sum of its proper divisors (644381178).

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

641604102 is a wasteful number, since it uses less digits than its factorization.

641604102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231427.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 641604102 is about 25329.9052899927. The cubic root of 641604102 is about 862.4932613630.

The spelling of 641604102 in words is "six hundred forty-one million, six hundred four thousand, one hundred two".