228607302 has 64 divisors (see below), whose sum is σ = 573640704. Its totient is φ = 59003040.

The previous prime is 228607231. The next prime is 228607303. The reversal of 228607302 is 203706822.

It is a super-2 number, since 2×228607302² = 104522597055438408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228607302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228607303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75673 + ... + 78635.

It is an arithmetic number, because the mean of its divisors is an integer number (8963136).

Almost surely, 2^228607302 is an apocalyptic number.

228607302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 228607302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286820352).

228607302 is an abundant number, since it is smaller than the sum of its proper divisors (345033402).

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

228607302 is a wasteful number, since it uses less digits than its factorization.

228607302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 228607302 is about 15119.7652759558. The cubic root of 228607302 is about 611.4534025587.

The spelling of 228607302 in words is "two hundred twenty-eight million, six hundred seven thousand, three hundred two".