4393428928 has 56 divisors (see below), whose sum is σ = 10018901984. Its totient is φ = 1872460800.

The previous prime is 4393428913. The next prime is 4393428929. The reversal of 4393428928 is 8298243934.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4393428929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53998 + ... + 108178.

It is an arithmetic number, because the mean of its divisors is an integer number (178908964).

Almost surely, 2^4393428928 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 4393428928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5009450992).

4393428928 is an abundant number, since it is smaller than the sum of its proper divisors (5625473056).

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

4393428928 is a wasteful number, since it uses less digits than its factorization.

4393428928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54381 (or 54371 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 4393428928 is about 66282.9459816022. The cubic root of 4393428928 is about 1637.8264046260.

The spelling of 4393428928 in words is "four billion, three hundred ninety-three million, four hundred twenty-eight thousand, nine hundred twenty-eight".