228259374 has 32 divisors (see below), whose sum is σ = 552427776. Its totient is φ = 61380480.

The previous prime is 228259321. The next prime is 228259403. The reversal of 228259374 is 473952822.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159132 + ... + 160559.

It is an arithmetic number, because the mean of its divisors is an integer number (17263368).

Almost surely, 2^228259374 is an apocalyptic number.

228259374 is an abundant number, since it is smaller than the sum of its proper divisors (324168402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228259374 is a wasteful number, since it uses less digits than its factorization.

228259374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319720.

The product of its digits is 241920, while the sum is 42.

The square root of 228259374 is about 15108.2551606729. The cubic root of 228259374 is about 611.1430453419.

The spelling of 228259374 in words is "two hundred twenty-eight million, two hundred fifty-nine thousand, three hundred seventy-four".