228747390 has 16 divisors (see below), whose sum is σ = 548993808. Its totient is φ = 60999296.

The previous prime is 228747383. The next prime is 228747391. The reversal of 228747390 is 93747822.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228747391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3812427 + ... + 3812486.

It is an arithmetic number, because the mean of its divisors is an integer number (34312113).

Almost surely, 2^228747390 is an apocalyptic number.

228747390 is an abundant number, since it is smaller than the sum of its proper divisors (320246418).

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

228747390 is a wasteful number, since it uses less digits than its factorization.

228747390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624923.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 228747390 is about 15124.3971780696. The cubic root of 228747390 is about 611.5782743262.

The spelling of 228747390 in words is "two hundred twenty-eight million, seven hundred forty-seven thousand, three hundred ninety".