4188894130 has 8 divisors (see below), whose sum is σ = 7540009452. Its totient is φ = 1675557648.

The previous prime is 4188894107. The next prime is 4188894133. The reversal of 4188894130 is 314988814.

It can be written as a sum of positive squares in 2 ways, for example, as 3885402889 + 303491241 = 62333^2 + 17421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4188894133) 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, 209444697 + ... + 209444716.

Almost surely, 2^4188894130 is an apocalyptic number.

4188894130 is a deficient number, since it is larger than the sum of its proper divisors (3351115322).

4188894130 is a wasteful number, since it uses less digits than its factorization.

4188894130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418889420.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 4188894130 is about 64721.6666194560. Note that the first 4 decimals coincide. The cubic root of 4188894130 is about 1612.0052852501.

The spelling of 4188894130 in words is "four billion, one hundred eighty-eight million, eight hundred ninety-four thousand, one hundred thirty".