40859521 has 8 divisors (see below), whose sum is σ = 42350400. Its totient is φ = 39374160.

The previous prime is 40859513. The next prime is 40859527. The reversal of 40859521 is 12595804.

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 40859521 - 2³ = 40859513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40859527) 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, 19020 + ... + 21058.

It is an arithmetic number, because the mean of its divisors is an integer number (5293800).

Almost surely, 2^40859521 is an apocalyptic number.

It is an amenable number.

40859521 is a deficient number, since it is larger than the sum of its proper divisors (1490879).

40859521 is a wasteful number, since it uses less digits than its factorization.

40859521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 40859521 is about 6392.1452580491. The cubic root of 40859521 is about 344.4274505394.

The spelling of 40859521 in words is "forty million, eight hundred fifty-nine thousand, five hundred twenty-one".