229444540920 has 128 divisors (see below), whose sum is σ = 874074470400. Its totient is φ = 52444464768.

The previous prime is 229444540907. The next prime is 229444540931. The reversal of 229444540920 is 29045444922.

It is a happy number.

229444540920 is a `hidden beast` number, since 22 + 94 + 4 + 454 + 0 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 15167344 + ... + 15182463.

It is an arithmetic number, because the mean of its divisors is an integer number (6828706800).

Almost surely, 2^229444540920 is an apocalyptic number.

229444540920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229444540920 is an abundant number, since it is smaller than the sum of its proper divisors (644629929480).

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

229444540920 is a wasteful number, since it uses less digits than its factorization.

229444540920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30349834 (or 30349824 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 229444540920 in words is "two hundred twenty-nine billion, four hundred forty-four million, five hundred forty thousand, nine hundred twenty".