228162405 has 16 divisors (see below), whose sum is σ = 370203264. Its totient is φ = 119972160.

The previous prime is 228162379. The next prime is 228162409. The reversal of 228162405 is 504261822.

It is not a de Polignac number, because 228162405 - 2⁸ = 228162149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228162409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106054 + ... + 108183.

It is an arithmetic number, because the mean of its divisors is an integer number (23137704).

Almost surely, 2^228162405 is an apocalyptic number.

It is an amenable number.

228162405 is a deficient number, since it is larger than the sum of its proper divisors (142040859).

228162405 is a wasteful number, since it uses less digits than its factorization.

228162405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214316.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 228162405 is about 15105.0456801693. The cubic root of 228162405 is about 611.0564912861.

The spelling of 228162405 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, four hundred five".