40705042 has 16 divisors (see below), whose sum is σ = 69914880. Its totient is φ = 17411328.

The previous prime is 40705037. The next prime is 40705043. The reversal of 40705042 is 24050704.

It is not an unprimeable number, because it can be changed into a prime (40705043) 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, 5559 + ... + 10597.

It is an arithmetic number, because the mean of its divisors is an integer number (4369680).

Almost surely, 2^40705042 is an apocalyptic number.

40705042 is a deficient number, since it is larger than the sum of its proper divisors (29209838).

40705042 is a wasteful number, since it uses less digits than its factorization.

40705042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5625.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40705042 is about 6380.0503132812. The cubic root of 40705042 is about 343.9928394489.

Adding to 40705042 its reverse (24050704), we get a palindrome (64755746).

The spelling of 40705042 in words is "forty million, seven hundred five thousand, forty-two".