228200490 has 160 divisors (see below), whose sum is σ = 708390144. Its totient is φ = 51632640.

The previous prime is 228200473. The next prime is 228200521. The reversal of 228200490 is 94002822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 946770 + ... + 947010.

Almost surely, 2^228200490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228200490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354195072).

228200490 is an abundant number, since it is smaller than the sum of its proper divisors (480189654).

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

228200490 is a wasteful number, since it uses less digits than its factorization.

228200490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 228200490 is about 15106.3062990262. The cubic root of 228200490 is about 611.0904886950.

The spelling of 228200490 in words is "two hundred twenty-eight million, two hundred thousand, four hundred ninety".