4189344642 has 48 divisors (see below), whose sum is σ = 10385286912. Its totient is φ = 1195608960.

The previous prime is 4189344631. The next prime is 4189344749. The reversal of 4189344642 is 2464439814.

4189344642 is a `hidden beast` number, since 4 + 189 + 3 + 4 + 464 + 2 = 666.

4189344642 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96538 + ... + 133034.

It is an arithmetic number, because the mean of its divisors is an integer number (216360144).

Almost surely, 2^4189344642 is an apocalyptic number.

4189344642 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4189344642 is an abundant number, since it is smaller than the sum of its proper divisors (6195942270).

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

4189344642 is a wasteful number, since it uses less digits than its factorization.

4189344642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37423 (or 37420 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 4189344642 is about 64725.1469059747. The cubic root of 4189344642 is about 1612.0630731108.

The spelling of 4189344642 in words is "four billion, one hundred eighty-nine million, three hundred forty-four thousand, six hundred forty-two".