228901022 has 16 divisors (see below), whose sum is σ = 415484640. Its totient is φ = 92329728.

The previous prime is 228901021. The next prime is 228901087. The reversal of 228901022 is 220109822.

It is a junction number, because it is equal to n+sod(n) for n = 228900982 and 228901000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228901021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480647 + ... + 481122.

It is an arithmetic number, because the mean of its divisors is an integer number (25967790).

Almost surely, 2^228901022 is an apocalyptic number.

228901022 is a deficient number, since it is larger than the sum of its proper divisors (186583618).

228901022 is a wasteful number, since it uses less digits than its factorization.

228901022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961795.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 228901022 is about 15129.4752717997. The cubic root of 228901022 is about 611.7151603566.

The spelling of 228901022 in words is "two hundred twenty-eight million, nine hundred one thousand, twenty-two".