228885397 has 8 divisors (see below), whose sum is σ = 257209344. Its totient is φ = 202092528.

The previous prime is 228885373. The next prime is 228885407. The reversal of 228885397 is 793588822.

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 228885397 - 2¹¹ = 228883349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228885317) 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, 382453 + ... + 383050.

It is an arithmetic number, because the mean of its divisors is an integer number (32151168).

Almost surely, 2^228885397 is an apocalyptic number.

It is an amenable number.

228885397 is a deficient number, since it is larger than the sum of its proper divisors (28323947).

228885397 is a wasteful number, since it uses less digits than its factorization.

228885397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765539.

The product of its digits is 1935360, while the sum is 52.

The square root of 228885397 is about 15128.9588868501. The cubic root of 228885397 is about 611.7012412883.

The spelling of 228885397 in words is "two hundred twenty-eight million, eight hundred eighty-five thousand, three hundred ninety-seven".