228501624 has 128 divisors (see below), whose sum is σ = 662135040. Its totient is φ = 65083392.

The previous prime is 228501601. The next prime is 228501649. The reversal of 228501624 is 426105822.

It is a junction number, because it is equal to n+sod(n) for n = 228501591 and 228501600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355047 + ... + 355689.

It is an arithmetic number, because the mean of its divisors is an integer number (5172930).

Almost surely, 2^228501624 is an apocalyptic number.

228501624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228501624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331067520).

228501624 is an abundant number, since it is smaller than the sum of its proper divisors (433633416).

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

228501624 is a wasteful number, since it uses less digits than its factorization.

228501624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 228501624 is about 15116.2701748811. The cubic root of 228501624 is about 611.3591694473.

The spelling of 228501624 in words is "two hundred twenty-eight million, five hundred one thousand, six hundred twenty-four".