40342349 has 2 divisors, whose sum is σ = 40342350. Its totient is φ = 40342348.

The previous prime is 40342331. The next prime is 40342363. The reversal of 40342349 is 94324304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 4761124 = 5965^2 + 2182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40342349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40342369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171174 + 20171175.

It is an arithmetic number, because the mean of its divisors is an integer number (20171175).

Almost surely, 2^40342349 is an apocalyptic number.

It is an amenable number.

40342349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40342349 is an equidigital number, since it uses as much as digits as its factorization.

40342349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 40342349 is about 6351.5627210947. The cubic root of 40342349 is about 342.9680998929.

The spelling of 40342349 in words is "forty million, three hundred forty-two thousand, three hundred forty-nine".