40376665 has 16 divisors (see below), whose sum is σ = 56135808. Its totient is φ = 27305856.

The previous prime is 40376659. The next prime is 40376681. The reversal of 40376665 is 56667304.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40376665 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5347 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (3508488).

Almost surely, 2^40376665 is an apocalyptic number.

It is an amenable number.

40376665 is a deficient number, since it is larger than the sum of its proper divisors (15759143).

40376665 is a wasteful number, since it uses less digits than its factorization.

40376665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15888.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 40376665 is about 6354.2635293164. The cubic root of 40376665 is about 343.0653174829.

It can be divided in two parts, 40376 and 665, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 40376665 in words is "forty million, three hundred seventy-six thousand, six hundred sixty-five".