238863434 has 16 divisors (see below), whose sum is σ = 364872480. Its totient is φ = 117246960.

The previous prime is 238863433. The next prime is 238863437. The reversal of 238863434 is 434368832.

It is a junction number, because it is equal to n+sod(n) for n = 238863391 and 238863400.

It is not an unprimeable number, because it can be changed into a prime (238863431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73937 + ... + 77099.

It is an arithmetic number, because the mean of its divisors is an integer number (22804530).

Almost surely, 2^238863434 is an apocalyptic number.

238863434 is a deficient number, since it is larger than the sum of its proper divisors (126009046).

238863434 is a wasteful number, since it uses less digits than its factorization.

238863434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845.

The product of its digits is 331776, while the sum is 41.

The square root of 238863434 is about 15455.2073425108. The cubic root of 238863434 is about 620.4639555379.

The spelling of 238863434 in words is "two hundred thirty-eight million, eight hundred sixty-three thousand, four hundred thirty-four".