228502940 has 12 divisors (see below), whose sum is σ = 479856216. Its totient is φ = 91401168.

The previous prime is 228502877. The next prime is 228502943. The reversal of 228502940 is 49205822.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 228502897 and 228502906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228502943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5712554 + ... + 5712593.

It is an arithmetic number, because the mean of its divisors is an integer number (39988018).

Almost surely, 2^228502940 is an apocalyptic number.

228502940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228502940 is an abundant number, since it is smaller than the sum of its proper divisors (251353276).

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

228502940 is a wasteful number, since it uses less digits than its factorization.

228502940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425156 (or 11425154 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 228502940 is about 15116.3137040748. The cubic root of 228502940 is about 611.3603431036.

The spelling of 228502940 in words is "two hundred twenty-eight million, five hundred two thousand, nine hundred forty".