228671445 has 8 divisors (see below), whose sum is σ = 365874336. Its totient is φ = 121958096.

The previous prime is 228671419. The next prime is 228671449. The reversal of 228671445 is 544176822.

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

It is a cyclic number.

It is not a de Polignac number, because 228671445 - 2⁶ = 228671381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228671449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622367 + ... + 7622396.

It is an arithmetic number, because the mean of its divisors is an integer number (45734292).

Almost surely, 2^228671445 is an apocalyptic number.

It is an amenable number.

228671445 is a deficient number, since it is larger than the sum of its proper divisors (137202891).

228671445 is a wasteful number, since it uses less digits than its factorization.

228671445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15244771.

The product of its digits is 107520, while the sum is 39.

The square root of 228671445 is about 15121.8862910683. The cubic root of 228671445 is about 611.5105847333.

The spelling of 228671445 in words is "two hundred twenty-eight million, six hundred seventy-one thousand, four hundred forty-five".