40051814 has 16 divisors (see below), whose sum is σ = 67654656. Its totient is φ = 17617800.

The previous prime is 40051801. The next prime is 40051841. The reversal of 40051814 is 41815004.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40051814.

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 7 ways as a sum of consecutive naturals, for example, 28682 + ... + 30045.

It is an arithmetic number, because the mean of its divisors is an integer number (4228416).

Almost surely, 2^40051814 is an apocalyptic number.

40051814 is a deficient number, since it is larger than the sum of its proper divisors (27602842).

40051814 is a wasteful number, since it uses less digits than its factorization.

40051814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58771.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 40051814 is about 6328.6502510409. The cubic root of 40051814 is about 342.1427934435.

Adding to 40051814 its reverse (41815004), we get a palindrome (81866818).

The spelling of 40051814 in words is "forty million, fifty-one thousand, eight hundred fourteen".