40546665 has 48 divisors (see below), whose sum is σ = 75628800. Its totient is φ = 20030976.

The previous prime is 40546661. The next prime is 40546673. The reversal of 40546665 is 56664504.

It is a happy number.

40546665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40546665 - 2² = 40546661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40546661) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 39681 + ... + 40689.

It is an arithmetic number, because the mean of its divisors is an integer number (1575600).

Almost surely, 2^40546665 is an apocalyptic number.

40546665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40546665 is a deficient number, since it is larger than the sum of its proper divisors (35082135).

40546665 is a wasteful number, since it uses less digits than its factorization.

40546665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 40546665 is about 6367.6263238353. The cubic root of 40546665 is about 343.5461186592.

The spelling of 40546665 in words is "forty million, five hundred forty-six thousand, six hundred sixty-five".