228222465 has 32 divisors (see below), whose sum is σ = 379247616. Its totient is φ = 117070080.

The previous prime is 228222451. The next prime is 228222469. The reversal of 228222465 is 564222822.

It is not a de Polignac number, because 228222465 - 2¹¹ = 228220417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228222469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79027 + ... + 81863.

It is an arithmetic number, because the mean of its divisors is an integer number (11851488).

Almost surely, 2^228222465 is an apocalyptic number.

It is an amenable number.

228222465 is a deficient number, since it is larger than the sum of its proper divisors (151025151).

228222465 is a wasteful number, since it uses less digits than its factorization.

228222465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049.

The product of its digits is 30720, while the sum is 33.

The square root of 228222465 is about 15107.0336267581. The cubic root of 228222465 is about 611.1101034388.

The spelling of 228222465 in words is "two hundred twenty-eight million, two hundred twenty-two thousand, four hundred sixty-five".