238542049 has 2 divisors, whose sum is σ = 238542050. Its totient is φ = 238542048.

The previous prime is 238541999. The next prime is 238542053. The reversal of 238542049 is 940245832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237375649 + 1166400 = 15407^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 238542049 - 2²⁵ = 204987617 is a prime.

It is a super-2 number, since 2×238542049² = 113804618282236802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238541999 and 238542017.

It is not a weakly prime, because it can be changed into another prime (238542089) 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 as a sum of consecutive naturals, namely, 119271024 + 119271025.

It is an arithmetic number, because the mean of its divisors is an integer number (119271025).

Almost surely, 2^238542049 is an apocalyptic number.

It is an amenable number.

238542049 is a deficient number, since it is larger than the sum of its proper divisors (1).

238542049 is an equidigital number, since it uses as much as digits as its factorization.

238542049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 238542049 is about 15444.8065381215. The cubic root of 238542049 is about 620.1855575363.

The spelling of 238542049 in words is "two hundred thirty-eight million, five hundred forty-two thousand, forty-nine".