40993555 has 8 divisors (see below), whose sum is σ = 49227552. Its totient is φ = 32771328.

The previous prime is 40993553. The next prime is 40993573. The reversal of 40993555 is 55539904.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40993555 - 2¹ = 40993553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40993553) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9562 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (6153444).

Almost surely, 2^40993555 is an apocalyptic number.

40993555 is a deficient number, since it is larger than the sum of its proper divisors (8233997).

40993555 is a wasteful number, since it uses less digits than its factorization.

40993555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 40993555 is about 6402.6209477057. The cubic root of 40993555 is about 344.8036549938.

The spelling of 40993555 in words is "forty million, nine hundred ninety-three thousand, five hundred fifty-five".