228507822 has 12 divisors (see below), whose sum is σ = 495100320. Its totient is φ = 76169268.

The previous prime is 228507821. The next prime is 228507823. The reversal of 228507822 is 228705822.

It is an interprime number because it is at equal distance from previous prime (228507821) and next prime (228507823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228507821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6347422 + ... + 6347457.

It is an arithmetic number, because the mean of its divisors is an integer number (41258360).

Almost surely, 2^228507822 is an apocalyptic number.

228507822 is an abundant number, since it is smaller than the sum of its proper divisors (266592498).

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

228507822 is a wasteful number, since it uses less digits than its factorization.

228507822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12694887 (or 12694884 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 228507822 is about 15116.4751843808. The cubic root of 228507822 is about 611.3646970081.

The spelling of 228507822 in words is "two hundred twenty-eight million, five hundred seven thousand, eight hundred twenty-two".