228781742 has 8 divisors (see below), whose sum is σ = 392197296. Its totient is φ = 98049312.

The previous prime is 228781739. The next prime is 228781789. The reversal of 228781742 is 247187822.

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

It is a self number, because there is not a number n which added to its sum of digits gives 228781742.

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 3 ways as a sum of consecutive naturals, for example, 8170763 + ... + 8170790.

It is an arithmetic number, because the mean of its divisors is an integer number (49024662).

Almost surely, 2^228781742 is an apocalyptic number.

228781742 is a deficient number, since it is larger than the sum of its proper divisors (163415554).

228781742 is a wasteful number, since it uses less digits than its factorization.

228781742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16341562.

The product of its digits is 100352, while the sum is 41.

The square root of 228781742 is about 15125.5327840047. The cubic root of 228781742 is about 611.6088872588.

The spelling of 228781742 in words is "two hundred twenty-eight million, seven hundred eighty-one thousand, seven hundred forty-two".