40342663 has 4 divisors (see below), whose sum is σ = 40590328. Its totient is φ = 40095000.

The previous prime is 40342657. The next prime is 40342703. The reversal of 40342663 is 36624304.

40342663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40342663 - 2⁹ = 40342151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40342633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123588 + ... + 123913.

It is an arithmetic number, because the mean of its divisors is an integer number (10147582).

Almost surely, 2^40342663 is an apocalyptic number.

40342663 is a deficient number, since it is larger than the sum of its proper divisors (247665).

40342663 is a wasteful number, since it uses less digits than its factorization.

40342663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247664.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 40342663 is about 6351.5874393729. The cubic root of 40342663 is about 342.9689897081.

Adding to 40342663 its reverse (36624304), we get a palindrome (76966967).

The spelling of 40342663 in words is "forty million, three hundred forty-two thousand, six hundred sixty-three".