229003920 has 120 divisors (see below), whose sum is σ = 779785656. Its totient is φ = 60217344.

The previous prime is 229003891. The next prime is 229004003. The reversal of 229003920 is 29300922.

It can be written as a sum of positive squares in 4 ways, for example, as 102576384 + 126427536 = 10128^2 + 11244^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50382 + ... + 54738.

Almost surely, 2^229003920 is an apocalyptic number.

229003920 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 229003920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389892828).

229003920 is an abundant number, since it is smaller than the sum of its proper divisors (550781736).

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

229003920 is a wasteful number, since it uses less digits than its factorization.

229003920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449 (or 4440 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 229003920 is about 15132.8754703130. The cubic root of 229003920 is about 611.8068081739.

The spelling of 229003920 in words is "two hundred twenty-nine million, three thousand, nine hundred twenty".