228961044 has 144 divisors (see below), whose sum is σ = 660441600. Its totient is φ = 66350592.

The previous prime is 228960971. The next prime is 228961079. The reversal of 228961044 is 440169822.

228961044 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 957877 + ... + 958115.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^228961044 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 228961044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330220800).

228961044 is an abundant number, since it is smaller than the sum of its proper divisors (431480556).

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

228961044 is a wasteful number, since it uses less digits than its factorization.

228961044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 228961044 is about 15131.4587532068. The cubic root of 228961044 is about 611.7686232875.

The spelling of 228961044 in words is "two hundred twenty-eight million, nine hundred sixty-one thousand, forty-four".