40688075 has 6 divisors (see below), whose sum is σ = 50453244. Its totient is φ = 32550440.

The previous prime is 40688071. The next prime is 40688099. The reversal of 40688075 is 57088604.

It is not a de Polignac number, because 40688075 - 2² = 40688071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40688071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 813737 + ... + 813786.

It is an arithmetic number, because the mean of its divisors is an integer number (8408874).

Almost surely, 2^40688075 is an apocalyptic number.

40688075 is a deficient number, since it is larger than the sum of its proper divisors (9765169).

40688075 is a wasteful number, since it uses less digits than its factorization.

40688075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627533 (or 1627528 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 40688075 is about 6378.7204829809. The cubic root of 40688075 is about 343.9450375277.

The spelling of 40688075 in words is "forty million, six hundred eighty-eight thousand, seventy-five".