64341820 has 12 divisors (see below), whose sum is σ = 135117864. Its totient is φ = 25736720.

The previous prime is 64341817. The next prime is 64341839. The reversal of 64341820 is 2814346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608526 + ... + 1608565.

It is an arithmetic number, because the mean of its divisors is an integer number (11259822).

Almost surely, 2^64341820 is an apocalyptic number.

It is an amenable number.

64341820 is an abundant number, since it is smaller than the sum of its proper divisors (70776044).

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

64341820 is a wasteful number, since it uses less digits than its factorization.

64341820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217100 (or 3217098 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 64341820 is about 8021.3353003100. The cubic root of 64341820 is about 400.7108609434.

The spelling of 64341820 in words is "sixty-four million, three hundred forty-one thousand, eight hundred twenty".