228001398 has 8 divisors (see below), whose sum is σ = 456002808. Its totient is φ = 76000464.

The previous prime is 228001381. The next prime is 228001409. The reversal of 228001398 is 893100822.

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

228001398 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19000111 + ... + 19000122.

It is an arithmetic number, because the mean of its divisors is an integer number (57000351).

Almost surely, 2^228001398 is an apocalyptic number.

228001398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228001398 is a wasteful number, since it uses less digits than its factorization.

228001398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38000238.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 228001398 is about 15099.7151628764. The cubic root of 228001398 is about 610.9127230437.

The spelling of 228001398 in words is "two hundred twenty-eight million, one thousand, three hundred ninety-eight".