228144780 has 108 divisors (see below), whose sum is σ = 730587312. Its totient is φ = 57620160.

The previous prime is 228144767. The next prime is 228144781. The reversal of 228144780 is 87441822.

228144780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (228144781) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63225 + ... + 66735.

Almost surely, 2^228144780 is an apocalyptic number.

228144780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228144780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365293656).

228144780 is an abundant number, since it is smaller than the sum of its proper divisors (502442532).

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

228144780 is a wasteful number, since it uses less digits than its factorization.

228144780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 228144780 is about 15104.4622545789. The cubic root of 228144780 is about 611.0407566635.

The spelling of 228144780 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred eighty".