40861064 has 32 divisors (see below), whose sum is σ = 84654720. Its totient is φ = 18391296.

The previous prime is 40861063. The next prime is 40861097. The reversal of 40861064 is 46016804.

It is not an unprimeable number, because it can be changed into a prime (40861063) 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, 3404 + ... + 9659.

It is an arithmetic number, because the mean of its divisors is an integer number (2645460).

Almost surely, 2^40861064 is an apocalyptic number.

It is an amenable number.

40861064 is an abundant number, since it is smaller than the sum of its proper divisors (43793656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40861064 is a wasteful number, since it uses less digits than its factorization.

40861064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13109 (or 13105 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40861064 is about 6392.2659519141. The cubic root of 40861064 is about 344.4317860843.

Adding to 40861064 its reverse (46016804), we get a palindrome (86877868).

The spelling of 40861064 in words is "forty million, eight hundred sixty-one thousand, sixty-four".