228120446 has 4 divisors (see below), whose sum is σ = 342180672. Its totient is φ = 114060222.

The previous prime is 228120391. The next prime is 228120449. The reversal of 228120446 is 644021822.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228120449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57030110 + ... + 57030113.

It is an arithmetic number, because the mean of its divisors is an integer number (85545168).

Almost surely, 2^228120446 is an apocalyptic number.

228120446 is a deficient number, since it is larger than the sum of its proper divisors (114060226).

228120446 is a wasteful number, since it uses less digits than its factorization.

228120446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114060225.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 228120446 is about 15103.6567095522. The cubic root of 228120446 is about 611.0190312859.

The spelling of 228120446 in words is "two hundred twenty-eight million, one hundred twenty thousand, four hundred forty-six".