40992559 has 8 divisors (see below), whose sum is σ = 44577648. Its totient is φ = 37537920.

The previous prime is 40992541. The next prime is 40992569. The reversal of 40992559 is 95529904.

It is a happy number.

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 40992559 - 2⁵ = 40992527 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 (40992569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31957 + ... + 33214.

It is an arithmetic number, because the mean of its divisors is an integer number (5572206).

Almost surely, 2^40992559 is an apocalyptic number.

40992559 is a deficient number, since it is larger than the sum of its proper divisors (3585089).

40992559 is a wasteful number, since it uses less digits than its factorization.

40992559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65225.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 40992559 is about 6402.5431665862. The cubic root of 40992559 is about 344.8008624636.

The spelling of 40992559 in words is "forty million, nine hundred ninety-two thousand, five hundred fifty-nine".