228421010 has 16 divisors (see below), whose sum is σ = 435343896. Its totient is φ = 85993728.

The previous prime is 228420979. The next prime is 228421049. The reversal of 228421010 is 10124822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 182439049 + 45981961 = 13507^2 + 6781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671657 + ... + 671996.

Almost surely, 2^228421010 is an apocalyptic number.

228421010 is a deficient number, since it is larger than the sum of its proper divisors (206922886).

228421010 is a wasteful number, since it uses less digits than its factorization.

228421010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343677.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 228421010 is about 15113.6034750155. The cubic root of 228421010 is about 611.2872663771.

Adding to 228421010 its reverse (10124822), we get a palindrome (238545832).

The spelling of 228421010 in words is "two hundred twenty-eight million, four hundred twenty-one thousand, ten".