228038902 has 32 divisors (see below), whose sum is σ = 422053632. Its totient is φ = 89986464.

The previous prime is 228038891. The next prime is 228038917. The reversal of 228038902 is 209830822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83653 + ... + 86335.

It is an arithmetic number, because the mean of its divisors is an integer number (13189176).

Almost surely, 2^228038902 is an apocalyptic number.

228038902 is a deficient number, since it is larger than the sum of its proper divisors (194014730).

228038902 is a wasteful number, since it uses less digits than its factorization.

228038902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 228038902 is about 15100.9569895421. The cubic root of 228038902 is about 610.9462175966.

The spelling of 228038902 in words is "two hundred twenty-eight million, thirty-eight thousand, nine hundred two".