64343128 has 16 divisors (see below), whose sum is σ = 120929760. Its totient is φ = 32095200.

The previous prime is 64343119. The next prime is 64343129. The reversal of 64343128 is 82134346.

It is a self number, because there is not a number n which added to its sum of digits gives 64343128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64343129) 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, 5883 + ... + 12778.

It is an arithmetic number, because the mean of its divisors is an integer number (7558110).

Almost surely, 2^64343128 is an apocalyptic number.

It is an amenable number.

64343128 is a deficient number, since it is larger than the sum of its proper divisors (56586632).

64343128 is a wasteful number, since it uses less digits than its factorization.

64343128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19098 (or 19094 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 64343128 is about 8021.4168324555. The cubic root of 64343128 is about 400.7135762653.

The spelling of 64343128 in words is "sixty-four million, three hundred forty-three thousand, one hundred twenty-eight".