238123645 has 8 divisors (see below), whose sum is σ = 285948000. Its totient is φ = 190365840.

The previous prime is 238123643. The next prime is 238123649. The reversal of 238123645 is 546321832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238123645 - 2¹ = 238123643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238123645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238123643) 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, 8391 + ... + 23380.

It is an arithmetic number, because the mean of its divisors is an integer number (35743500).

Almost surely, 2^238123645 is an apocalyptic number.

It is an amenable number.

238123645 is a deficient number, since it is larger than the sum of its proper divisors (47824355).

238123645 is a wasteful number, since it uses less digits than its factorization.

238123645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33275.

The product of its digits is 34560, while the sum is 34.

The square root of 238123645 is about 15431.2554576742. The cubic root of 238123645 is about 619.8227424245.

The spelling of 238123645 in words is "two hundred thirty-eight million, one hundred twenty-three thousand, six hundred forty-five".