228091375 has 8 divisors (see below), whose sum is σ = 284658192. Its totient is φ = 182473000.

The previous prime is 228091361. The next prime is 228091399. The reversal of 228091375 is 573190822.

It is not a de Polignac number, because 228091375 - 2⁵ = 228091343 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 912241 + ... + 912490.

It is an arithmetic number, because the mean of its divisors is an integer number (35582274).

Almost surely, 2^228091375 is an apocalyptic number.

228091375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228091375 is a deficient number, since it is larger than the sum of its proper divisors (56566817).

228091375 is an equidigital number, since it uses as much as digits as its factorization.

228091375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824746 (or 1824736 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 228091375 is about 15102.6942960519. The cubic root of 228091375 is about 610.9930746927.

The spelling of 228091375 in words is "two hundred twenty-eight million, ninety-one thousand, three hundred seventy-five".