42748033 has 2 divisors, whose sum is σ = 42748034. Its totient is φ = 42748032.

The previous prime is 42748031. The next prime is 42748067. The reversal of 42748033 is 33084724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24532209 + 18215824 = 4953^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 42748033 - 2¹ = 42748031 is a prime.

Together with 42748031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42747986 and 42748004.

It is not a weakly prime, because it can be changed into another prime (42748031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21374016 + 21374017.

It is an arithmetic number, because the mean of its divisors is an integer number (21374017).

Almost surely, 2^42748033 is an apocalyptic number.

It is an amenable number.

42748033 is a deficient number, since it is larger than the sum of its proper divisors (1).

42748033 is an equidigital number, since it uses as much as digits as its factorization.

42748033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42748033 is about 6538.1979933312. The cubic root of 42748033 is about 349.6541699674.

The spelling of 42748033 in words is "forty-two million, seven hundred forty-eight thousand, thirty-three".