228481079 has 4 divisors (see below), whose sum is σ = 228758184. Its totient is φ = 228203976.

The previous prime is 228481073. The next prime is 228481087. The reversal of 228481079 is 970184822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228481079 - 2⁴ = 228481063 is a prime.

It is a super-2 number, since 2×228481079² = 104407206922008482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228481073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137312 + ... + 138965.

It is an arithmetic number, because the mean of its divisors is an integer number (57189546).

Almost surely, 2^228481079 is an apocalyptic number.

228481079 is a deficient number, since it is larger than the sum of its proper divisors (277105).

228481079 is an equidigital number, since it uses as much as digits as its factorization.

228481079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277104.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 228481079 is about 15115.5905938207. The cubic root of 228481079 is about 611.3408460902.

The spelling of 228481079 in words is "two hundred twenty-eight million, four hundred eighty-one thousand, seventy-nine".