229078389 has 4 divisors (see below), whose sum is σ = 305437856. Its totient is φ = 152718924.

The previous prime is 229078387. The next prime is 229078429. The reversal of 229078389 is 983870922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 229078389 - 2¹ = 229078387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229078387) 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, 38179729 + ... + 38179734.

It is an arithmetic number, because the mean of its divisors is an integer number (76359464).

Almost surely, 2^229078389 is an apocalyptic number.

It is an amenable number.

229078389 is a deficient number, since it is larger than the sum of its proper divisors (76359467).

229078389 is an equidigital number, since it uses as much as digits as its factorization.

229078389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76359466.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 229078389 is about 15135.3357742734. The cubic root of 229078389 is about 611.8731181065.

The spelling of 229078389 in words is "two hundred twenty-nine million, seventy-eight thousand, three hundred eighty-nine".