228654090 has 160 divisors (see below), whose sum is σ = 717868800. Its totient is φ = 52200288.

The previous prime is 228654079. The next prime is 228654103. The reversal of 228654090 is 90456822.

It is a happy number.

228654090 is a `hidden beast` number, since 2 + 28 + 6 + 540 + 90 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 277419 + ... + 278241.

It is an arithmetic number, because the mean of its divisors is an integer number (4486680).

Almost surely, 2^228654090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228654090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358934400).

228654090 is an abundant number, since it is smaller than the sum of its proper divisors (489214710).

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

228654090 is an equidigital number, since it uses as much as digits as its factorization.

228654090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 228654090 is about 15121.3124430388. The cubic root of 228654090 is about 611.4951141606.

The spelling of 228654090 in words is "two hundred twenty-eight million, six hundred fifty-four thousand, ninety".