40518742 has 32 divisors (see below), whose sum is σ = 70308000. Its totient is φ = 17337600.

The previous prime is 40518739. The next prime is 40518757. The reversal of 40518742 is 24781504.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25384 + ... + 26932.

It is an arithmetic number, because the mean of its divisors is an integer number (2197125).

Almost surely, 2^40518742 is an apocalyptic number.

40518742 is a deficient number, since it is larger than the sum of its proper divisors (29789258).

40518742 is a wasteful number, since it uses less digits than its factorization.

40518742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 40518742 is about 6365.4333709497. The cubic root of 40518742 is about 343.4672380148.

The spelling of 40518742 in words is "forty million, five hundred eighteen thousand, seven hundred forty-two".