40989607 has 4 divisors (see below), whose sum is σ = 41002416. Its totient is φ = 40976800.

The previous prime is 40989587. The next prime is 40989643. The reversal of 40989607 is 70698904.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40989607 - 2¹¹ = 40987559 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 (40989677) 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, 2982 + ... + 9532.

It is an arithmetic number, because the mean of its divisors is an integer number (10250604).

Almost surely, 2^40989607 is an apocalyptic number.

40989607 is a deficient number, since it is larger than the sum of its proper divisors (12809).

40989607 is an equidigital number, since it uses as much as digits as its factorization.

40989607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12808.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 40989607 is about 6402.3126290427. The cubic root of 40989607 is about 344.7925855421.

The spelling of 40989607 in words is "forty million, nine hundred eighty-nine thousand, six hundred seven".