228404730 has 32 divisors (see below), whose sum is σ = 548985600. Its totient is φ = 60817472.

The previous prime is 228404723. The next prime is 228404747. The reversal of 228404730 is 37404822.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16276 + ... + 26864.

It is an arithmetic number, because the mean of its divisors is an integer number (17155800).

Almost surely, 2^228404730 is an apocalyptic number.

228404730 is an abundant number, since it is smaller than the sum of its proper divisors (320580870).

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

228404730 is a wasteful number, since it uses less digits than its factorization.

228404730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 228404730 is about 15113.0648777804. The cubic root of 228404730 is about 611.2727434966.

The spelling of 228404730 in words is "two hundred twenty-eight million, four hundred four thousand, seven hundred thirty".