228218294 has 32 divisors (see below), whose sum is σ = 361398240. Its totient is φ = 107972352.

The previous prime is 228218293. The next prime is 228218317. The reversal of 228218294 is 492812822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228218293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448112 + ... + 448620.

It is an arithmetic number, because the mean of its divisors is an integer number (11293695).

Almost surely, 2^228218294 is an apocalyptic number.

228218294 is a deficient number, since it is larger than the sum of its proper divisors (133179946).

228218294 is a wasteful number, since it uses less digits than its factorization.

228218294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 36864, while the sum is 38.

The square root of 228218294 is about 15106.8955778479. The cubic root of 228218294 is about 611.1063805278.

The spelling of 228218294 in words is "two hundred twenty-eight million, two hundred eighteen thousand, two hundred ninety-four".