40860889 has 4 divisors (see below), whose sum is σ = 40878756. Its totient is φ = 40843024.

The previous prime is 40860871. The next prime is 40860893. The reversal of 40860889 is 98806804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28729600 + 12131289 = 5360^2 + 3483^2 .

It is a cyclic number.

It is not a de Polignac number, because 40860889 - 2¹⁵ = 40828121 is a prime.

It is a super-2 number, since 2×40860889² = 3339224499740642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40860829) 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 3 ways as a sum of consecutive naturals, for example, 4894 + ... + 10279.

It is an arithmetic number, because the mean of its divisors is an integer number (10219689).

Almost surely, 2^40860889 is an apocalyptic number.

It is an amenable number.

40860889 is a deficient number, since it is larger than the sum of its proper divisors (17867).

40860889 is a wasteful number, since it uses less digits than its factorization.

40860889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17866.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 40860889 is about 6392.2522634827. The cubic root of 40860889 is about 344.4312943721.

The spelling of 40860889 in words is "forty million, eight hundred sixty thousand, eight hundred eighty-nine".