40248079 has 2 divisors, whose sum is σ = 40248080. Its totient is φ = 40248078.

The previous prime is 40248071. The next prime is 40248097. The reversal of 40248079 is 97084204.

It is a happy number.

Together with next prime (40248097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40248079 - 2³ = 40248071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40248071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20124039 + 20124040.

It is an arithmetic number, because the mean of its divisors is an integer number (20124040).

Almost surely, 2^40248079 is an apocalyptic number.

40248079 is a deficient number, since it is larger than the sum of its proper divisors (1).

40248079 is an equidigital number, since it uses as much as digits as its factorization.

40248079 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 34.

The square root of 40248079 is about 6344.1373724093. The cubic root of 40248079 is about 342.7007479253.

The spelling of 40248079 in words is "forty million, two hundred forty-eight thousand, seventy-nine".