229378 has 4 divisors (see below), whose sum is σ = 344070. Its totient is φ = 114688.

The previous prime is 229373. The next prime is 229393. The reversal of 229378 is 873922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 227529 + 1849 = 477^2 + 43^2 .

It is a super-2 number, since 2×229378² = 105228533768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (229373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57343 + ... + 57346.

229378 is a Friedman number, since it can be written as 2+7*2^(8*3-9), using all its digits and the basic arithmetic operations.

2²²⁹³⁷⁸ is an apocalyptic number.

229378 is a deficient number, since it is larger than the sum of its proper divisors (114692).

229378 is a wasteful number, since it uses less digits than its factorization.

229378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114691.

The product of its digits is 6048, while the sum is 31.

The square root of 229378 is about 478.9342334810. The cubic root of 229378 is about 61.2139757622.

The spelling of 229378 in words is "two hundred twenty-nine thousand, three hundred seventy-eight".