40680555 has 8 divisors (see below), whose sum is σ = 65088912. Its totient is φ = 21696288.

The previous prime is 40680547. The next prime is 40680557. The reversal of 40680555 is 55508604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40680555 - 2³ = 40680547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40680557) 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, 1356004 + ... + 1356033.

It is an arithmetic number, because the mean of its divisors is an integer number (8136114).

Almost surely, 2^40680555 is an apocalyptic number.

40680555 is a deficient number, since it is larger than the sum of its proper divisors (24408357).

40680555 is a wasteful number, since it uses less digits than its factorization.

40680555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712045.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 40680555 is about 6378.1309958326. The cubic root of 40680555 is about 343.9238468304.

The spelling of 40680555 in words is "forty million, six hundred eighty thousand, five hundred fifty-five".