40190685 has 8 divisors (see below), whose sum is σ = 64305120. Its totient is φ = 21435024.

The previous prime is 40190677. The next prime is 40190699. The reversal of 40190685 is 58609104.

40190685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40190685 - 2³ = 40190677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339675 + ... + 1339704.

It is an arithmetic number, because the mean of its divisors is an integer number (8038140).

Almost surely, 2^40190685 is an apocalyptic number.

It is an amenable number.

40190685 is a deficient number, since it is larger than the sum of its proper divisors (24114435).

40190685 is a wasteful number, since it uses less digits than its factorization.

40190685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679387.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40190685 is about 6339.6123698535. The cubic root of 40190685 is about 342.5377726647.

Adding to 40190685 its reverse (58609104), we get a palindrome (98799789).

The spelling of 40190685 in words is "forty million, one hundred ninety thousand, six hundred eighty-five".