229981020 has 48 divisors (see below), whose sum is σ = 666156960. Its totient is φ = 59213056.

The previous prime is 229981007. The next prime is 229981061. The reversal of 229981020 is 20189922.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64347 + ... + 67826.

It is an arithmetic number, because the mean of its divisors is an integer number (13878270).

Almost surely, 2^229981020 is an apocalyptic number.

229981020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229981020 is an abundant number, since it is smaller than the sum of its proper divisors (436175940).

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

229981020 is a wasteful number, since it uses less digits than its factorization.

229981020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132214 (or 132212 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 229981020 is about 15165.1251231238. The cubic root of 229981020 is about 612.6757135738.

The spelling of 229981020 in words is "two hundred twenty-nine million, nine hundred eighty-one thousand, twenty".