238705742 has 16 divisors (see below), whose sum is σ = 391316400. Its totient is φ = 108306240.

The previous prime is 238705741. The next prime is 238705787. The reversal of 238705742 is 247507832.

It is a junction number, because it is equal to n+sod(n) for n = 238705696 and 238705705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238705741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 22052.

It is an arithmetic number, because the mean of its divisors is an integer number (24457275).

Almost surely, 2^238705742 is an apocalyptic number.

238705742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

238705742 is a deficient number, since it is larger than the sum of its proper divisors (152610658).

238705742 is a wasteful number, since it uses less digits than its factorization.

238705742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19651.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 238705742 is about 15450.1049187376. The cubic root of 238705742 is about 620.3273869286.

The spelling of 238705742 in words is "two hundred thirty-eight million, seven hundred five thousand, seven hundred forty-two".