40704493 has 2 divisors, whose sum is σ = 40704494. Its totient is φ = 40704492.

The previous prime is 40704473. The next prime is 40704509. The reversal of 40704493 is 39440704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34140649 + 6563844 = 5843^2 + 2562^2 .

It is a cyclic number.

It is not a de Polignac number, because 40704493 - 2⁹ = 40703981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40704463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20352246 + 20352247.

It is an arithmetic number, because the mean of its divisors is an integer number (20352247).

Almost surely, 2^40704493 is an apocalyptic number.

It is an amenable number.

40704493 is a deficient number, since it is larger than the sum of its proper divisors (1).

40704493 is an equidigital number, since it uses as much as digits as its factorization.

40704493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40704493 is about 6380.0072883971. The cubic root of 40704493 is about 343.9912929336.

The spelling of 40704493 in words is "forty million, seven hundred four thousand, four hundred ninety-three".