40088 has 8 divisors (see below), whose sum is σ = 75180. Its totient is φ = 20040.

The previous prime is 40087. The next prime is 40093. The reversal of 40088 is 88004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498 + ... + 2513.

2⁴⁰⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

40088 is a deficient number, since it is larger than the sum of its proper divisors (35092).

40088 is a wasteful number, since it uses less digits than its factorization.

40088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 40088 is about 200.2198791329. The cubic root of 40088 is about 34.2245802115.

The spelling of 40088 in words is "forty thousand, eighty-eight".