229990 has 16 divisors (see below), whose sum is σ = 419760. Its totient is φ = 90720.

The previous prime is 229981. The next prime is 230003. The reversal of 229990 is 99922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 1195.

It is an arithmetic number, because the mean of its divisors is an integer number (26235).

2²²⁹⁹⁹⁰ is an apocalyptic number.

229990 is a deficient number, since it is larger than the sum of its proper divisors (189770).

229990 is a wasteful number, since it uses less digits than its factorization.

229990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 229990 is about 479.5727264972. The cubic root of 229990 is about 61.2683687792.

It can be divided in two parts, 2 and 29990, that added together give a palindrome (29992).

The spelling of 229990 in words is "two hundred twenty-nine thousand, nine hundred ninety".