238747066 has 16 divisors (see below), whose sum is σ = 361065600. Its totient is φ = 118396080.

The previous prime is 238747057. The next prime is 238747073. The reversal of 238747066 is 660747832.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157251 + ... + 158761.

It is an arithmetic number, because the mean of its divisors is an integer number (22566600).

Almost surely, 2^238747066 is an apocalyptic number.

238747066 is a deficient number, since it is larger than the sum of its proper divisors (122318534).

238747066 is a wasteful number, since it uses less digits than its factorization.

238747066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 238747066 is about 15451.4421980603. The cubic root of 238747066 is about 620.3631812495.

The spelling of 238747066 in words is "two hundred thirty-eight million, seven hundred forty-seven thousand, sixty-six".