40342597 has 4 divisors (see below), whose sum is σ = 40551820. Its totient is φ = 40133376.

The previous prime is 40342573. The next prime is 40342633. The reversal of 40342597 is 79524304.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10246401 + 30096196 = 3201^2 + 5486^2 .

It is a cyclic number.

It is not a de Polignac number, because 40342597 - 2¹¹ = 40340549 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 (40342537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104322 + ... + 104707.

It is an arithmetic number, because the mean of its divisors is an integer number (10137955).

Almost surely, 2^40342597 is an apocalyptic number.

It is an amenable number.

40342597 is a deficient number, since it is larger than the sum of its proper divisors (209223).

40342597 is a wasteful number, since it uses less digits than its factorization.

40342597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209222.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 40342597 is about 6351.5822438193. The cubic root of 40342597 is about 342.9688026773.

The spelling of 40342597 in words is "forty million, three hundred forty-two thousand, five hundred ninety-seven".