229280148 has 54 divisors (see below), whose sum is σ = 600322814. Its totient is φ = 73781568.

The previous prime is 229280111. The next prime is 229280153. The reversal of 229280148 is 841082922.

It can be written as a sum of positive squares in 3 ways, for example, as 114961284 + 114318864 = 10722^2 + 10692^2 .

It is a super-3 number, since 3×229280148³ (a number of 26 digits) contains 333 as substring.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26490 + ... + 34062.

Almost surely, 2^229280148 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 229280148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300161407).

229280148 is an abundant number, since it is smaller than the sum of its proper divisors (371042666).

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

229280148 is a wasteful number, since it uses less digits than its factorization.

229280148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641 (or 7607 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 229280148 is about 15141.9994716682. Note that the first 3 decimals coincide. The cubic root of 229280148 is about 612.0526995501.

The spelling of 229280148 in words is "two hundred twenty-nine million, two hundred eighty thousand, one hundred forty-eight".