238656001 has 2 divisors, whose sum is σ = 238656002. Its totient is φ = 238656000.

The previous prime is 238655983. The next prime is 238656007. The reversal of 238656001 is 100656832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209236225 + 29419776 = 14465^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 238656001 - 2⁹ = 238655489 is a prime.

It is not a weakly prime, because it can be changed into another prime (238656007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119328000 + 119328001.

It is an arithmetic number, because the mean of its divisors is an integer number (119328001).

Almost surely, 2^238656001 is an apocalyptic number.

It is an amenable number.

238656001 is a deficient number, since it is larger than the sum of its proper divisors (1).

238656001 is an equidigital number, since it uses as much as digits as its factorization.

238656001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 238656001 is about 15448.4951047019. The cubic root of 238656001 is about 620.2842964304.

The spelling of 238656001 in words is "two hundred thirty-eight million, six hundred fifty-six thousand, one".