229569990 has 32 divisors (see below), whose sum is σ = 593351136. Its totient is φ = 56509440.

The previous prime is 229569983. The next prime is 229570021. The reversal of 229569990 is 99965922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293931 + ... + 294710.

It is an arithmetic number, because the mean of its divisors is an integer number (18542223).

Almost surely, 2^229569990 is an apocalyptic number.

229569990 is an abundant number, since it is smaller than the sum of its proper divisors (363781146).

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

229569990 is a wasteful number, since it uses less digits than its factorization.

229569990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588664.

The product of its (nonzero) digits is 787320, while the sum is 51.

The square root of 229569990 is about 15151.5672456680. The cubic root of 229569990 is about 612.3104975327.

The spelling of 229569990 in words is "two hundred twenty-nine million, five hundred sixty-nine thousand, nine hundred ninety".