40046893 has 2 divisors, whose sum is σ = 40046894. Its totient is φ = 40046892.

The previous prime is 40046891. The next prime is 40046969. The reversal of 40046893 is 39864004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39980329 + 66564 = 6323^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 40046893 - 2¹ = 40046891 is a prime.

Together with 40046891, 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 (40046891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20023446 + 20023447.

It is an arithmetic number, because the mean of its divisors is an integer number (20023447).

Almost surely, 2^40046893 is an apocalyptic number.

It is an amenable number.

40046893 is a deficient number, since it is larger than the sum of its proper divisors (1).

40046893 is an equidigital number, since it uses as much as digits as its factorization.

40046893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40046893 is about 6328.2614516153. The cubic root of 40046893 is about 342.1287803150.

It can be divided in two parts, 4004 and 6893, that multiplied together give a palindrome (27599572).

The spelling of 40046893 in words is "forty million, forty-six thousand, eight hundred ninety-three".