229978 has 8 divisors (see below), whose sum is σ = 394272. Its totient is φ = 98556.

The previous prime is 229963. The next prime is 229979. The reversal of 229978 is 879922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (229979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8200 + ... + 8227.

It is an arithmetic number, because the mean of its divisors is an integer number (49284).

2²²⁹⁹⁷⁸ is an apocalyptic number.

229978 is a deficient number, since it is larger than the sum of its proper divisors (164294).

229978 is a wasteful number, since it uses less digits than its factorization.

229978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16436.

The product of its digits is 18144, while the sum is 37.

The square root of 229978 is about 479.5602151972. The cubic root of 229978 is about 61.2673031775.

It can be divided in two parts, 22997 and 8, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 229978 in words is "two hundred twenty-nine thousand, nine hundred seventy-eight".