228522403 has 8 divisors (see below), whose sum is σ = 230723072. Its totient is φ = 226328256.

The previous prime is 228522401. The next prime is 228522419. The reversal of 228522403 is 304225822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228522403 - 2¹ = 228522401 is a prime.

It is a super-3 number, since 3×228522403³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228522401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94951 + ... + 97327.

It is an arithmetic number, because the mean of its divisors is an integer number (28840384).

Almost surely, 2^228522403 is an apocalyptic number.

228522403 is a deficient number, since it is larger than the sum of its proper divisors (2200669).

228522403 is a wasteful number, since it uses less digits than its factorization.

228522403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 228522403 is about 15116.9574650457. The cubic root of 228522403 is about 611.3777003837.

The spelling of 228522403 in words is "two hundred twenty-eight million, five hundred twenty-two thousand, four hundred three".