228731426 has 16 divisors (see below), whose sum is σ = 427757760. Its totient is φ = 89116080.

The previous prime is 228731417. The next prime is 228731429. The reversal of 228731426 is 624137822.

It is not an unprimeable number, because it can be changed into a prime (228731429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742481 + ... + 742788.

It is an arithmetic number, because the mean of its divisors is an integer number (26734860).

Almost surely, 2^228731426 is an apocalyptic number.

228731426 is a deficient number, since it is larger than the sum of its proper divisors (199026334).

228731426 is a wasteful number, since it uses less digits than its factorization.

228731426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485289.

The product of its digits is 32256, while the sum is 35.

The square root of 228731426 is about 15123.8694122900. The cubic root of 228731426 is about 611.5640468958.

The spelling of 228731426 in words is "two hundred twenty-eight million, seven hundred thirty-one thousand, four hundred twenty-six".