228240434 has 8 divisors (see below), whose sum is σ = 347182848. Its totient is φ = 112512820.

The previous prime is 228240433. The next prime is 228240437. The reversal of 228240434 is 434042822.

It is a happy number.

228240434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 228240397 and 228240406.

It is not an unprimeable number, because it can be changed into a prime (228240433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803522 + ... + 803805.

It is an arithmetic number, because the mean of its divisors is an integer number (43397856).

Almost surely, 2^228240434 is an apocalyptic number.

228240434 is a deficient number, since it is larger than the sum of its proper divisors (118942414).

228240434 is a wasteful number, since it uses less digits than its factorization.

228240434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607400.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 228240434 is about 15107.6283380284. The cubic root of 228240434 is about 611.1261415171.

The spelling of 228240434 in words is "two hundred twenty-eight million, two hundred forty thousand, four hundred thirty-four".