40548943 has 2 divisors, whose sum is σ = 40548944. Its totient is φ = 40548942.

The previous prime is 40548919. The next prime is 40548947. The reversal of 40548943 is 34984504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40548943 - 2¹³ = 40540751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40548947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20274471 + 20274472.

It is an arithmetic number, because the mean of its divisors is an integer number (20274472).

Almost surely, 2^40548943 is an apocalyptic number.

40548943 is a deficient number, since it is larger than the sum of its proper divisors (1).

40548943 is an equidigital number, since it uses as much as digits as its factorization.

40548943 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 40548943 is about 6367.8051948847. The cubic root of 40548943 is about 343.5525522619.

The spelling of 40548943 in words is "forty million, five hundred forty-eight thousand, nine hundred forty-three".