228473396 has 6 divisors (see below), whose sum is σ = 399828450. Its totient is φ = 114236696.

The previous prime is 228473389. The next prime is 228473431. The reversal of 228473396 is 693374822.

It can be written as a sum of positive squares in only one way, i.e., 216501796 + 11971600 = 14714^2 + 3460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28559171 + ... + 28559178.

It is an arithmetic number, because the mean of its divisors is an integer number (66638075).

Almost surely, 2^228473396 is an apocalyptic number.

It is an amenable number.

228473396 is a deficient number, since it is larger than the sum of its proper divisors (171355054).

228473396 is a wasteful number, since it uses less digits than its factorization.

228473396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57118353 (or 57118351 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 228473396 is about 15115.3364501092. The cubic root of 228473396 is about 611.3339936127. Note that the first 3 decimals are identical.

The spelling of 228473396 in words is "two hundred twenty-eight million, four hundred seventy-three thousand, three hundred ninety-six".