228242620 has 12 divisors (see below), whose sum is σ = 479309544. Its totient is φ = 91297040.

The previous prime is 228242591. The next prime is 228242633. The reversal of 228242620 is 26242822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5706046 + ... + 5706085.

It is an arithmetic number, because the mean of its divisors is an integer number (39942462).

Almost surely, 2^228242620 is an apocalyptic number.

228242620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228242620 is an abundant number, since it is smaller than the sum of its proper divisors (251066924).

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

228242620 is a wasteful number, since it uses less digits than its factorization.

228242620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11412140 (or 11412138 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 228242620 is about 15107.7006854121. The cubic root of 228242620 is about 611.1280925554.

The spelling of 228242620 in words is "two hundred twenty-eight million, two hundred forty-two thousand, six hundred twenty".