229494322920 has 128 divisors (see below), whose sum is σ = 721070346240. Its totient is φ = 58321486080.

The previous prime is 229494322907. The next prime is 229494322927. The reversal of 229494322920 is 29223494922.

It is a self number, because there is not a number n which added to its sum of digits gives 229494322920.

It is not an unprimeable number, because it can be changed into a prime (229494322927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594547 + ... + 901373.

It is an arithmetic number, because the mean of its divisors is an integer number (5633362080).

Almost surely, 2^229494322920 is an apocalyptic number.

229494322920 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 229494322920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360535173120).

229494322920 is an abundant number, since it is smaller than the sum of its proper divisors (491576023320).

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

229494322920 is a wasteful number, since it uses less digits than its factorization.

229494322920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307135 (or 307131 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 229494322920 in words is "two hundred twenty-nine billion, four hundred ninety-four million, three hundred twenty-two thousand, nine hundred twenty".