40993366 has 4 divisors (see below), whose sum is σ = 61490052. Its totient is φ = 20496682.

The previous prime is 40993361. The next prime is 40993367. The reversal of 40993366 is 66339904.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40993361) 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 as a sum of consecutive naturals, namely, 10248340 + ... + 10248343.

It is an arithmetic number, because the mean of its divisors is an integer number (15372513).

Almost surely, 2^40993366 is an apocalyptic number.

40993366 is a deficient number, since it is larger than the sum of its proper divisors (20496686).

40993366 is a wasteful number, since it uses less digits than its factorization.

40993366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20496685.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 40993366 is about 6402.6061881081. The cubic root of 40993366 is about 344.8031250894.

The spelling of 40993366 in words is "forty million, nine hundred ninety-three thousand, three hundred sixty-six".