228435709389 has 8 divisors (see below), whose sum is σ = 308753287872. Its totient is φ = 150204301920.

The previous prime is 228435709343. The next prime is 228435709391. The reversal of 228435709389 is 983907534822.

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

It is not a de Polignac number, because 228435709389 - 2⁹ = 228435708877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228435704389) 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, 521542497 + ... + 521542934.

It is an arithmetic number, because the mean of its divisors is an integer number (38594160984).

Almost surely, 2^228435709389 is an apocalyptic number.

It is an amenable number.

228435709389 is a deficient number, since it is larger than the sum of its proper divisors (80317578483).

228435709389 is a wasteful number, since it uses less digits than its factorization.

228435709389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043085507.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 228435709389 in words is "two hundred twenty-eight billion, four hundred thirty-five million, seven hundred nine thousand, three hundred eighty-nine".