238992228 has 24 divisors (see below), whose sum is σ = 619609760. Its totient is φ = 79664040.

The previous prime is 238992223. The next prime is 238992269. The reversal of 238992228 is 822299832.

It is not an unprimeable number, because it can be changed into a prime (238992223) 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 7 ways as a sum of consecutive naturals, for example, 1106338 + ... + 1106553.

Almost surely, 2^238992228 is an apocalyptic number.

It is an amenable number.

238992228 is an abundant number, since it is smaller than the sum of its proper divisors (380617532).

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

238992228 is a wasteful number, since it uses less digits than its factorization.

238992228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212904 (or 2212896 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 238992228 is about 15459.3734672528. The cubic root of 238992228 is about 620.5754525482.

The spelling of 238992228 in words is "two hundred thirty-eight million, nine hundred ninety-two thousand, two hundred twenty-eight".