64030128 has 80 divisors (see below), whose sum is σ = 175512576. Its totient is φ = 20079360.

The previous prime is 64030111. The next prime is 64030129. The reversal of 64030128 is 82103046.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 64030098 and 64030107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64030129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54475 + ... + 55637.

Almost surely, 2^64030128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64030128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87756288).

64030128 is an abundant number, since it is smaller than the sum of its proper divisors (111482448).

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

64030128 is a wasteful number, since it uses less digits than its factorization.

64030128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1236 counting only the distinct ones).

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

The square root of 64030128 is about 8001.8827784466. The cubic root of 64030128 is about 400.0627568201.

The spelling of 64030128 in words is "sixty-four million, thirty thousand, one hundred twenty-eight".