40190687 has 8 divisors (see below), whose sum is σ = 41661696. Its totient is φ = 38745432.

The previous prime is 40190677. The next prime is 40190699. The reversal of 40190687 is 78609104.

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 40190687 - 2¹⁰ = 40189663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40190677) 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, 3233 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (5207712).

Almost surely, 2^40190687 is an apocalyptic number.

40190687 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

40190687 is a deficient number, since it is larger than the sum of its proper divisors (1471009).

40190687 is a wasteful number, since it uses less digits than its factorization.

40190687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 40190687 is about 6339.6125275919. The cubic root of 40190687 is about 342.5377783465.

The spelling of 40190687 in words is "forty million, one hundred ninety thousand, six hundred eighty-seven".