40705036 has 12 divisors (see below), whose sum is σ = 71506512. Its totient is φ = 20274608.

The previous prime is 40705033. The next prime is 40705037. The reversal of 40705036 is 63050704.

It is a super-2 number, since 2×40705036² = 3313799911522592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40705036.

It is not an unprimeable number, because it can be changed into a prime (40705033) 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 3 ways as a sum of consecutive naturals, for example, 18295 + ... + 20398.

It is an arithmetic number, because the mean of its divisors is an integer number (5958876).

Almost surely, 2^40705036 is an apocalyptic number.

It is an amenable number.

40705036 is a deficient number, since it is larger than the sum of its proper divisors (30801476).

40705036 is a wasteful number, since it uses less digits than its factorization.

40705036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38960 (or 38958 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40705036 is about 6380.0498430655. The cubic root of 40705036 is about 343.9928225472.

The spelling of 40705036 in words is "forty million, seven hundred five thousand, thirty-six".