228450490 has 64 divisors (see below), whose sum is σ = 459613440. Its totient is φ = 81354240.

The previous prime is 228450473. The next prime is 228450491. The reversal of 228450490 is 94054822.

It is not an unprimeable number, because it can be changed into a prime (228450491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266142 + ... + 266998.

It is an arithmetic number, because the mean of its divisors is an integer number (7181460).

Almost surely, 2^228450490 is an apocalyptic number.

228450490 is an abundant number, since it is smaller than the sum of its proper divisors (231162950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228450490 is a wasteful number, since it uses less digits than its factorization.

228450490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 228450490 is about 15114.5787238679. The cubic root of 228450490 is about 611.3135628102.

The spelling of 228450490 in words is "two hundred twenty-eight million, four hundred fifty thousand, four hundred ninety".