228116745 has 24 divisors (see below), whose sum is σ = 396374472. Its totient is φ = 121363200.

The previous prime is 228116723. The next prime is 228116753. The reversal of 228116745 is 547611822.

It can be written as a sum of positive squares in 4 ways, for example, as 227529 + 227889216 = 477^2 + 15096^2 .

It is not a de Polignac number, because 228116745 - 2¹² = 228112649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12925 + ... + 24965.

It is an arithmetic number, because the mean of its divisors is an integer number (16515603).

Almost surely, 2^228116745 is an apocalyptic number.

It is an amenable number.

228116745 is a deficient number, since it is larger than the sum of its proper divisors (168257727).

228116745 is a wasteful number, since it uses less digits than its factorization.

228116745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12473 (or 12470 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 228116745 is about 15103.5341890565. The cubic root of 228116745 is about 611.0157269005.

The spelling of 228116745 in words is "two hundred twenty-eight million, one hundred sixteen thousand, seven hundred forty-five".