40054686 has 32 divisors (see below), whose sum is σ = 96940800. Its totient is φ = 10770816.

The previous prime is 40054673. The next prime is 40054709. The reversal of 40054686 is 68645004.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27336 + ... + 28763.

It is an arithmetic number, because the mean of its divisors is an integer number (3029400).

Almost surely, 2^40054686 is an apocalyptic number.

40054686 is an abundant number, since it is smaller than the sum of its proper divisors (56886114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40054686 is a wasteful number, since it uses less digits than its factorization.

40054686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56128.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40054686 is about 6328.8771515965. The cubic root of 40054686 is about 342.1509712722.

The spelling of 40054686 in words is "forty million, fifty-four thousand, six hundred eighty-six".