40707688 has 16 divisors (see below), whose sum is σ = 87230880. Its totient is φ = 17446128.

The previous prime is 40707661. The next prime is 40707697. The reversal of 40707688 is 88670704.

It is a self number, because there is not a number n which added to its sum of digits gives 40707688.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363406 + ... + 363517.

It is an arithmetic number, because the mean of its divisors is an integer number (5451930).

Almost surely, 2^40707688 is an apocalyptic number.

It is an amenable number.

40707688 is an abundant number, since it is smaller than the sum of its proper divisors (46523192).

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

40707688 is a wasteful number, since it uses less digits than its factorization.

40707688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726936 (or 726932 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 40707688 is about 6380.2576750473. The cubic root of 40707688 is about 344.0002929509. Note that the first 3 decimals are identical.

The spelling of 40707688 in words is "forty million, seven hundred seven thousand, six hundred eighty-eight".