228323390 has 16 divisors (see below), whose sum is σ = 414754560. Its totient is φ = 90491040.

The previous prime is 228323377. The next prime is 228323419. The reversal of 228323390 is 93323822.

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, 103646 + ... + 105825.

It is an arithmetic number, because the mean of its divisors is an integer number (25922160).

Almost surely, 2^228323390 is an apocalyptic number.

228323390 is a deficient number, since it is larger than the sum of its proper divisors (186431170).

228323390 is a wasteful number, since it uses less digits than its factorization.

228323390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209587.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 228323390 is about 15110.3735890282. The cubic root of 228323390 is about 611.2001722786.

The spelling of 228323390 in words is "two hundred twenty-eight million, three hundred twenty-three thousand, three hundred ninety".