229261590 has 80 divisors (see below), whose sum is σ = 618987600. Its totient is φ = 60886080.

The previous prime is 229261579. The next prime is 229261603. The reversal of 229261590 is 95162922.

It is a happy number.

229261590 is a `hidden beast` number, since 2 + 2 + 9 + 2 + 61 + 590 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 282285 + ... + 283095.

It is an arithmetic number, because the mean of its divisors is an integer number (7737345).

Almost surely, 2^229261590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229261590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309493800).

229261590 is an abundant number, since it is smaller than the sum of its proper divisors (389726010).

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

229261590 is a wasteful number, since it uses less digits than its factorization.

229261590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 229261590 is about 15141.3866604086. The cubic root of 229261590 is about 612.0361858650.

The spelling of 229261590 in words is "two hundred twenty-nine million, two hundred sixty-one thousand, five hundred ninety".