229619391 has 8 divisors (see below), whose sum is σ = 324168624. Its totient is φ = 144074880.

The previous prime is 229619371. The next prime is 229619399. The reversal of 229619391 is 193916922.

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

It is not a de Polignac number, because 229619391 - 2¹⁴ = 229603007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229619399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251120 + ... + 2251221.

It is an arithmetic number, because the mean of its divisors is an integer number (40521078).

Almost surely, 2^229619391 is an apocalyptic number.

229619391 is a deficient number, since it is larger than the sum of its proper divisors (94549233).

229619391 is a wasteful number, since it uses less digits than its factorization.

229619391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502361.

The product of its digits is 52488, while the sum is 42.

The square root of 229619391 is about 15153.1973853705. The cubic root of 229619391 is about 612.3544152669.

The spelling of 229619391 in words is "two hundred twenty-nine million, six hundred nineteen thousand, three hundred ninety-one".