40989385 has 8 divisors (see below), whose sum is σ = 49337856. Its totient is φ = 32691120.

The previous prime is 40989371. The next prime is 40989401. The reversal of 40989385 is 58398904.

40989385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40989385 - 2⁵ = 40989353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10729 + ... + 14038.

It is an arithmetic number, because the mean of its divisors is an integer number (6167232).

Almost surely, 2^40989385 is an apocalyptic number.

It is an amenable number.

40989385 is a deficient number, since it is larger than the sum of its proper divisors (8348471).

40989385 is a wasteful number, since it uses less digits than its factorization.

40989385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25103.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 40989385 is about 6402.2952915341. The cubic root of 40989385 is about 344.7919630746.

The spelling of 40989385 in words is "forty million, nine hundred eighty-nine thousand, three hundred eighty-five".