228969650 has 144 divisors (see below), whose sum is σ = 544608000. Its totient is φ = 71547840.

The previous prime is 228969647. The next prime is 228969731. The reversal of 228969650 is 56969822.

It is a happy number.

It is a super-2 number, since 2×228969650² = 104854201242245000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228969595 and 228969604.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2898311 + ... + 2898389.

It is an arithmetic number, because the mean of its divisors is an integer number (3782000).

Almost surely, 2^228969650 is an apocalyptic number.

228969650 is an abundant number, since it is smaller than the sum of its proper divisors (315638350).

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

228969650 is a wasteful number, since it uses less digits than its factorization.

228969650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 228969650 is about 15131.7431249675. The cubic root of 228969650 is about 611.7762880773.

The spelling of 228969650 in words is "two hundred twenty-eight million, nine hundred sixty-nine thousand, six hundred fifty".