4391896428 has 36 divisors (see below), whose sum is σ = 11122308288. Its totient is φ = 1461252960.

The previous prime is 4391896381. The next prime is 4391896441. The reversal of 4391896428 is 8246981934.

4391896428 is a `hidden beast` number, since 4 + 39 + 189 + 6 + 428 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93276 + ... + 132227.

It is an arithmetic number, because the mean of its divisors is an integer number (308953008).

Almost surely, 2^4391896428 is an apocalyptic number.

It is an amenable number.

4391896428 is an abundant number, since it is smaller than the sum of its proper divisors (6730411860).

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

4391896428 is a wasteful number, since it uses less digits than its factorization.

4391896428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226054 (or 226049 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 4391896428 is about 66271.3846844926. The cubic root of 4391896428 is about 1637.6359489172.

The spelling of 4391896428 in words is "four billion, three hundred ninety-one million, eight hundred ninety-six thousand, four hundred twenty-eight".