228408071 has 4 divisors (see below), whose sum is σ = 229775952. Its totient is φ = 227040192.

The previous prime is 228408053. The next prime is 228408097. The reversal of 228408071 is 170804822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170804822 = 2 ⋅85402411.

It is a cyclic number.

It is not a de Polignac number, because 228408071 - 2¹⁴ = 228391687 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 (228408871) 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, 683690 + ... + 684023.

It is an arithmetic number, because the mean of its divisors is an integer number (57443988).

Almost surely, 2^228408071 is an apocalyptic number.

228408071 is a deficient number, since it is larger than the sum of its proper divisors (1367881).

228408071 is a wasteful number, since it uses less digits than its factorization.

228408071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367880.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 228408071 is about 15113.1754108791. The cubic root of 228408071 is about 611.2757239548.

The spelling of 228408071 in words is "two hundred twenty-eight million, four hundred eight thousand, seventy-one".