4428688188 has 48 divisors (see below), whose sum is σ = 10916904320. Its totient is φ = 1393464384.

The previous prime is 4428688183. The next prime is 4428688189. The reversal of 4428688188 is 8818868244.

It is a super-2 number, since 2×4428688188² = 39226558133061446688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428688183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28095 + ... + 98217.

Almost surely, 2^4428688188 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 4428688188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5458452160).

4428688188 is an abundant number, since it is smaller than the sum of its proper divisors (6488216132).

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

4428688188 is a wasteful number, since it uses less digits than its factorization.

4428688188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70426 (or 70424 counting only the distinct ones).

The product of its digits is 6291456, while the sum is 57.

The square root of 4428688188 is about 66548.3898227448. The cubic root of 4428688188 is about 1642.1961688815.

The spelling of 4428688188 in words is "four billion, four hundred twenty-eight million, six hundred eighty-eight thousand, one hundred eighty-eight".