229391026 has 4 divisors (see below), whose sum is σ = 344086542. Its totient is φ = 114695512.

The previous prime is 229391021. The next prime is 229391051. The reversal of 229391026 is 620193922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620193922 = 2 ⋅310096961.

It can be written as a sum of positive squares in only one way, i.e., 139122025 + 90269001 = 11795^2 + 9501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 229390982 and 229391000.

It is not an unprimeable number, because it can be changed into a prime (229391021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57347755 + ... + 57347758.

Almost surely, 2^229391026 is an apocalyptic number.

229391026 is a deficient number, since it is larger than the sum of its proper divisors (114695516).

229391026 is a wasteful number, since it uses less digits than its factorization.

229391026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114695515.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 229391026 is about 15145.6603025421. The cubic root of 229391026 is about 612.1513448731.

The spelling of 229391026 in words is "two hundred twenty-nine million, three hundred ninety-one thousand, twenty-six".