40995566 has 8 divisors (see below), whose sum is σ = 61596480. Its totient is φ = 20463408.

The previous prime is 40995541. The next prime is 40995583. The reversal of 40995566 is 66559904.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15671 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (7699560).

Almost surely, 2^40995566 is an apocalyptic number.

40995566 is a deficient number, since it is larger than the sum of its proper divisors (20600914).

40995566 is a wasteful number, since it uses less digits than its factorization.

40995566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34378.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 40995566 is about 6402.7779908412. Note that the first 3 decimals coincide. The cubic root of 40995566 is about 344.8092931875.

The spelling of 40995566 in words is "forty million, nine hundred ninety-five thousand, five hundred sixty-six".