228140673 has 8 divisors (see below), whose sum is σ = 309927168. Its totient is φ = 149223984.

The previous prime is 228140659. The next prime is 228140681. The reversal of 228140673 is 376041822.

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

It is not a de Polignac number, because 228140673 - 2¹⁰ = 228139649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228140623) 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, 717265 + ... + 717582.

It is an arithmetic number, because the mean of its divisors is an integer number (38740896).

Almost surely, 2^228140673 is an apocalyptic number.

It is an amenable number.

228140673 is a deficient number, since it is larger than the sum of its proper divisors (81786495).

228140673 is a wasteful number, since it uses less digits than its factorization.

228140673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434903.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 228140673 is about 15104.3263007656. The cubic root of 228140673 is about 611.0370900452.

The spelling of 228140673 in words is "two hundred twenty-eight million, one hundred forty thousand, six hundred seventy-three".