228351641 has 8 divisors (see below), whose sum is σ = 261081600. Its totient is φ = 195648768.

The previous prime is 228351637. The next prime is 228351647. The reversal of 228351641 is 146153822.

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

It is not a de Polignac number, because 228351641 - 2² = 228351637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228351598 and 228351607.

It is not an unprimeable number, because it can be changed into a prime (228351647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16760 + ... + 27158.

It is an arithmetic number, because the mean of its divisors is an integer number (32635200).

Almost surely, 2^228351641 is an apocalyptic number.

It is an amenable number.

228351641 is a deficient number, since it is larger than the sum of its proper divisors (32729959).

228351641 is a wasteful number, since it uses less digits than its factorization.

228351641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13543.

The product of its digits is 11520, while the sum is 32.

The square root of 228351641 is about 15111.3083814738. The cubic root of 228351641 is about 611.2253796594.

The spelling of 228351641 in words is "two hundred twenty-eight million, three hundred fifty-one thousand, six hundred forty-one".