40027984 has 20 divisors (see below), whose sum is σ = 81636640. Its totient is φ = 18960480.

The previous prime is 40027943. The next prime is 40027993. The reversal of 40027984 is 48972004.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 65532 + ... + 66139.

It is an arithmetic number, because the mean of its divisors is an integer number (4081832).

Almost surely, 2^40027984 is an apocalyptic number.

It is an amenable number.

40027984 is an abundant number, since it is smaller than the sum of its proper divisors (41608656).

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

40027984 is a wasteful number, since it uses less digits than its factorization.

40027984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131698 (or 131692 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40027984 is about 6326.7672629867. The cubic root of 40027984 is about 342.0749240223.

Adding to 40027984 its reverse (48972004), we get a palindrome (88999988).

The spelling of 40027984 in words is "forty million, twenty-seven thousand, nine hundred eighty-four".