40688101 has 8 divisors (see below), whose sum is σ = 42890400. Its totient is φ = 38491920.

The previous prime is 40688099. The next prime is 40688117. The reversal of 40688101 is 10188604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40688101 - 2¹ = 40688099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40688101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40688201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20106 + ... + 22036.

It is an arithmetic number, because the mean of its divisors is an integer number (5361300).

Almost surely, 2^40688101 is an apocalyptic number.

It is an amenable number.

40688101 is a deficient number, since it is larger than the sum of its proper divisors (2202299).

40688101 is a wasteful number, since it uses less digits than its factorization.

40688101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 40688101 is about 6378.7225210069. The cubic root of 40688101 is about 343.9451107889.

The spelling of 40688101 in words is "forty million, six hundred eighty-eight thousand, one hundred one".