228324090 has 32 divisors (see below), whose sum is σ = 553106880. Its totient is φ = 60316544.

The previous prime is 228324011. The next prime is 228324101. The reversal of 228324090 is 90423822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32355 + ... + 38774.

It is an arithmetic number, because the mean of its divisors is an integer number (17284590).

Almost surely, 2^228324090 is an apocalyptic number.

228324090 is an abundant number, since it is smaller than the sum of its proper divisors (324782790).

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

228324090 is a wasteful number, since it uses less digits than its factorization.

228324090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71246.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 228324090 is about 15110.3967519056. The cubic root of 228324090 is about 611.2007968892.

The spelling of 228324090 in words is "two hundred twenty-eight million, three hundred twenty-four thousand, ninety".