4389432198 has 16 divisors (see below), whose sum is σ = 9295268400. Its totient is φ = 1377076736.

The previous prime is 4389432143. The next prime is 4389432209. The reversal of 4389432198 is 8912349834.

It is a super-2 number, since 2×4389432198² = 38534230041678222408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 4389432198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21516723 + ... + 21516926.

It is an arithmetic number, because the mean of its divisors is an integer number (580954275).

Almost surely, 2^4389432198 is an apocalyptic number.

4389432198 is an abundant number, since it is smaller than the sum of its proper divisors (4905836202).

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

4389432198 is a wasteful number, since it uses less digits than its factorization.

4389432198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43033671.

The product of its digits is 1492992, while the sum is 51.

The square root of 4389432198 is about 66252.7901148321. The cubic root of 4389432198 is about 1637.3296069462.

The spelling of 4389432198 in words is "four billion, three hundred eighty-nine million, four hundred thirty-two thousand, one hundred ninety-eight".