40873453 has 2 divisors, whose sum is σ = 40873454. Its totient is φ = 40873452.

The previous prime is 40873451. The next prime is 40873471. The reversal of 40873453 is 35437804.

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., 20820969 + 20052484 = 4563^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 40873453 - 2¹ = 40873451 is a prime.

Together with 40873451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40873451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20436726 + 20436727.

It is an arithmetic number, because the mean of its divisors is an integer number (20436727).

Almost surely, 2^40873453 is an apocalyptic number.

It is an amenable number.

40873453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40873453 is an equidigital number, since it uses as much as digits as its factorization.

40873453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 40873453 is about 6393.2349401535. The cubic root of 40873453 is about 344.4665929297.

The spelling of 40873453 in words is "forty million, eight hundred seventy-three thousand, four hundred fifty-three".