40680465 has 16 divisors (see below), whose sum is σ = 74387328. Its totient is φ = 18596736.

The previous prime is 40680461. The next prime is 40680467. The reversal of 40680465 is 56408604.

It is a happy number.

It is not a de Polignac number, because 40680465 - 2² = 40680461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40680461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193612 + ... + 193821.

It is an arithmetic number, because the mean of its divisors is an integer number (4649208).

Almost surely, 2^40680465 is an apocalyptic number.

It is an amenable number.

40680465 is a deficient number, since it is larger than the sum of its proper divisors (33706863).

40680465 is a wasteful number, since it uses less digits than its factorization.

40680465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387448.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40680465 is about 6378.1239404703. The cubic root of 40680465 is about 343.9235932025.

The spelling of 40680465 in words is "forty million, six hundred eighty thousand, four hundred sixty-five".