228215709394 has 8 divisors (see below), whose sum is σ = 360340593840. Its totient is φ = 108102178116.

The previous prime is 228215709373. The next prime is 228215709433. The reversal of 228215709394 is 493907512822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002838244 + ... + 3002838319.

It is an arithmetic number, because the mean of its divisors is an integer number (45042574230).

Almost surely, 2^228215709394 is an apocalyptic number.

228215709394 is a deficient number, since it is larger than the sum of its proper divisors (132124884446).

228215709394 is a wasteful number, since it uses less digits than its factorization.

228215709394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005676584.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 228215709394 in words is "two hundred twenty-eight billion, two hundred fifteen million, seven hundred nine thousand, three hundred ninety-four".