40652597 has 4 divisors (see below), whose sum is σ = 40672620. Its totient is φ = 40632576.

The previous prime is 40652581. The next prime is 40652621. The reversal of 40652597 is 79525604.

It is a happy number.

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 19483396 + 21169201 = 4414^2 + 4601^2 .

It is a cyclic number.

It is not a de Polignac number, because 40652597 - 2⁴ = 40652581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40652597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40652527) 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, 6572 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (10168155).

Almost surely, 2^40652597 is an apocalyptic number.

It is an amenable number.

40652597 is a deficient number, since it is larger than the sum of its proper divisors (20023).

40652597 is a wasteful number, since it uses less digits than its factorization.

40652597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 40652597 is about 6375.9389112506. The cubic root of 40652597 is about 343.8450407398.

The spelling of 40652597 in words is "forty million, six hundred fifty-two thousand, five hundred ninety-seven".