42470243 has 2 divisors, whose sum is σ = 42470244. Its totient is φ = 42470242.

The previous prime is 42470237. The next prime is 42470251. The reversal of 42470243 is 34207424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42470243 - 2⁶ = 42470179 is a prime.

It is not a weakly prime, because it can be changed into another prime (42470273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235121 + 21235122.

It is an arithmetic number, because the mean of its divisors is an integer number (21235122).

Almost surely, 2^42470243 is an apocalyptic number.

42470243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42470243 is an equidigital number, since it uses as much as digits as its factorization.

42470243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 42470243 is about 6516.9197478563. The cubic root of 42470243 is about 348.8951362959.

Adding to 42470243 its reverse (34207424), we get a palindrome (76677667).

The spelling of 42470243 in words is "forty-two million, four hundred seventy thousand, two hundred forty-three".