228170390 has 32 divisors (see below), whose sum is σ = 471839040. Its totient is φ = 77819904.

The previous prime is 228170377. The next prime is 228170399. The reversal of 228170390 is 93071822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228170399) 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, 5066 + ... + 21954.

It is an arithmetic number, because the mean of its divisors is an integer number (14744970).

Almost surely, 2^228170390 is an apocalyptic number.

228170390 is an abundant number, since it is smaller than the sum of its proper divisors (243668650).

228170390 is a wasteful number, since it uses less digits than its factorization.

228170390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 228170390 is about 15105.3099935089. The cubic root of 228170390 is about 611.0636195845.

The spelling of 228170390 in words is "two hundred twenty-eight million, one hundred seventy thousand, three hundred ninety".