228260686 has 4 divisors (see below), whose sum is σ = 342391032. Its totient is φ = 114130342.

The previous prime is 228260677. The next prime is 228260687. The reversal of 228260686 is 686062822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228260687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57065170 + ... + 57065173.

It is an arithmetic number, because the mean of its divisors is an integer number (85597758).

Almost surely, 2^228260686 is an apocalyptic number.

228260686 is a deficient number, since it is larger than the sum of its proper divisors (114130346).

228260686 is a wasteful number, since it uses less digits than its factorization.

228260686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114130345.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 228260686 is about 15108.2985805815. The cubic root of 228260686 is about 611.1442162586.

The spelling of 228260686 in words is "two hundred twenty-eight million, two hundred sixty thousand, six hundred eighty-six".