40188807 has 12 divisors (see below), whose sum is σ = 59286240. Its totient is φ = 26222208.

The previous prime is 40188773. The next prime is 40188817. The reversal of 40188807 is 70888104.

It is not a de Polignac number, because 40188807 - 2¹⁰ = 40187783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40188817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47082 + ... + 47927.

It is an arithmetic number, because the mean of its divisors is an integer number (4940520).

Almost surely, 2^40188807 is an apocalyptic number.

40188807 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

40188807 is a deficient number, since it is larger than the sum of its proper divisors (19097433).

40188807 is a wasteful number, since it uses less digits than its factorization.

40188807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95062 (or 95059 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 40188807 is about 6339.4642518118. The cubic root of 40188807 is about 342.5324372994.

The spelling of 40188807 in words is "forty million, one hundred eighty-eight thousand, eight hundred seven".