40597689 has 8 divisors (see below), whose sum is σ = 59051232. Its totient is φ = 24604640.

The previous prime is 40597679. The next prime is 40597721. The reversal of 40597689 is 98679504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40597689 - 2⁴ = 40597673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40597639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615084 + ... + 615149.

It is an arithmetic number, because the mean of its divisors is an integer number (7381404).

Almost surely, 2^40597689 is an apocalyptic number.

It is an amenable number.

40597689 is a deficient number, since it is larger than the sum of its proper divisors (18453543).

40597689 is a wasteful number, since it uses less digits than its factorization.

40597689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230247.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 40597689 is about 6371.6315806864. The cubic root of 40597689 is about 343.6901646156.

The spelling of 40597689 in words is "forty million, five hundred ninety-seven thousand, six hundred eighty-nine".