228501345 has 8 divisors (see below), whose sum is σ = 365602176. Its totient is φ = 121867376.

The previous prime is 228501337. The next prime is 228501409. The reversal of 228501345 is 543105822.

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 228501345 - 2³ = 228501337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616697 + ... + 7616726.

It is an arithmetic number, because the mean of its divisors is an integer number (45700272).

Almost surely, 2^228501345 is an apocalyptic number.

It is an amenable number.

228501345 is a deficient number, since it is larger than the sum of its proper divisors (137100831).

228501345 is a wasteful number, since it uses less digits than its factorization.

228501345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15233431.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 228501345 is about 15116.2609464113. The cubic root of 228501345 is about 611.3589206245.

The spelling of 228501345 in words is "two hundred twenty-eight million, five hundred one thousand, three hundred forty-five".