40187400207 has 8 divisors (see below), whose sum is σ = 53588544384. Its totient is φ = 26788928088.

The previous prime is 40187400133. The next prime is 40187400217. The reversal of 40187400207 is 70200478104.

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

It is not a de Polignac number, because 40187400207 - 2¹⁸ = 40187138063 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40187400217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632653 + ... + 693270.

It is an arithmetic number, because the mean of its divisors is an integer number (6698568048).

Almost surely, 2^40187400207 is an apocalyptic number.

40187400207 is a deficient number, since it is larger than the sum of its proper divisors (13401144177).

40187400207 is a wasteful number, since it uses less digits than its factorization.

40187400207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336029.

The product of its (nonzero) digits is 12544, while the sum is 33.

The spelling of 40187400207 in words is "forty billion, one hundred eighty-seven million, four hundred thousand, two hundred seven".