228387814 has 4 divisors (see below), whose sum is σ = 342581724. Its totient is φ = 114193906.

The previous prime is 228387811. The next prime is 228387821. The reversal of 228387814 is 418783822.

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 (228387811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57096952 + ... + 57096955.

It is an arithmetic number, because the mean of its divisors is an integer number (85645431).

Almost surely, 2^228387814 is an apocalyptic number.

228387814 is a deficient number, since it is larger than the sum of its proper divisors (114193910).

228387814 is a wasteful number, since it uses less digits than its factorization.

228387814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114193909.

The product of its digits is 172032, while the sum is 43.

The square root of 228387814 is about 15112.5052191885. The cubic root of 228387814 is about 611.2576525292.

The spelling of 228387814 in words is "two hundred twenty-eight million, three hundred eighty-seven thousand, eight hundred fourteen".