228650632 has 64 divisors (see below), whose sum is σ = 501840000. Its totient is φ = 95648256.

The previous prime is 228650581. The next prime is 228650633. The reversal of 228650632 is 236056822.

It is a super-2 number, since 2×228650632² = 104562223027998848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228650633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 558844 + ... + 559252.

It is an arithmetic number, because the mean of its divisors is an integer number (7841250).

Almost surely, 2^228650632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228650632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250920000).

228650632 is an abundant number, since it is smaller than the sum of its proper divisors (273189368).

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

228650632 is a wasteful number, since it uses less digits than its factorization.

228650632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 228650632 is about 15121.1981006797. The cubic root of 228650632 is about 611.4920315409.

The spelling of 228650632 in words is "two hundred twenty-eight million, six hundred fifty thousand, six hundred thirty-two".