64341920 has 24 divisors (see below), whose sum is σ = 152008164. Its totient is φ = 25736704.

The previous prime is 64341917. The next prime is 64341929. The reversal of 64341920 is 2914346.

It can be written as a sum of positive squares in 2 ways, for example, as 54582544 + 9759376 = 7388^2 + 3124^2 .

It is not an unprimeable number, because it can be changed into a prime (64341929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200909 + ... + 201228.

Almost surely, 2^64341920 is an apocalyptic number.

It is an amenable number.

64341920 is an abundant number, since it is smaller than the sum of its proper divisors (87666244).

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

64341920 is a wasteful number, since it uses less digits than its factorization.

64341920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402152 (or 402144 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 64341920 is about 8021.3415336838. The cubic root of 64341920 is about 400.7110685381.

The spelling of 64341920 in words is "sixty-four million, three hundred forty-one thousand, nine hundred twenty".