229378531073388 has 96 divisors (see below), whose sum is σ = 559485453864960. Its totient is φ = 73051855215360.

The previous prime is 229378531073369. The next prime is 229378531073413. The reversal of 229378531073388 is 883370135873922.

It is a super-2 number, since 2×229378531073388² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4110298 + ... + 21809438.

It is an arithmetic number, because the mean of its divisors is an integer number (5827973477760).

Almost surely, 2^{229378531073388} 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 229378531073388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279742726932480).

229378531073388 is an abundant number, since it is smaller than the sum of its proper divisors (330106922791572).

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

229378531073388 is a wasteful number, since it uses less digits than its factorization.

229378531073388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17699567 (or 17699565 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 69.

The spelling of 229378531073388 in words is "two hundred twenty-nine trillion, three hundred seventy-eight billion, five hundred thirty-one million, seventy-three thousand, three hundred eighty-eight".