228673390 has 32 divisors (see below), whose sum is σ = 453413376. Its totient is φ = 82342560.

The previous prime is 228673373. The next prime is 228673399. The reversal of 228673390 is 93376822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228673399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239 + ... + 21421.

It is an arithmetic number, because the mean of its divisors is an integer number (14169168).

Almost surely, 2^228673390 is an apocalyptic number.

228673390 is a deficient number, since it is larger than the sum of its proper divisors (224739986).

228673390 is a wasteful number, since it uses less digits than its factorization.

228673390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20304.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 228673390 is about 15121.9506016916. The cubic root of 228673390 is about 611.5123184941.

The spelling of 228673390 in words is "two hundred twenty-eight million, six hundred seventy-three thousand, three hundred ninety".