229451358528 has 448 divisors, whose sum is σ = 786003609600. Its totient is φ = 64286576640.

The previous prime is 229451358527. The next prime is 229451358593. The reversal of 229451358528 is 825853154922.

229451358528 is a `hidden beast` number, since 2 + 2 + 9 + 4 + 51 + 3 + 585 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229451358527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141026451 + ... + 141028077.

Almost surely, 2^229451358528 is an apocalyptic number.

229451358528 is a gapful number since it is divisible by the number (28) 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 229451358528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393001804800).

229451358528 is an abundant number, since it is smaller than the sum of its proper divisors (556552251072).

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

229451358528 is a wasteful number, since it uses less digits than its factorization.

229451358528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875 (or 1859 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The spelling of 229451358528 in words is "two hundred twenty-nine billion, four hundred fifty-one million, three hundred fifty-eight thousand, five hundred twenty-eight".