238421288 has 16 divisors (see below), whose sum is σ = 510902880. Its totient is φ = 102180528.

The previous prime is 238421269. The next prime is 238421297. The reversal of 238421288 is 882124832.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128706 + ... + 2128817.

It is an arithmetic number, because the mean of its divisors is an integer number (31931430).

Almost surely, 2^238421288 is an apocalyptic number.

238421288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

238421288 is an abundant number, since it is smaller than the sum of its proper divisors (272481592).

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

238421288 is a wasteful number, since it uses less digits than its factorization.

238421288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257536 (or 4257532 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 238421288 is about 15440.8966060912. The cubic root of 238421288 is about 620.0808843486.

The spelling of 238421288 in words is "two hundred thirty-eight million, four hundred twenty-one thousand, two hundred eighty-eight".