40085901 has 8 divisors (see below), whose sum is σ = 59386560. Its totient is φ = 26723916.

The previous prime is 40085897. The next prime is 40085923. The reversal of 40085901 is 10958004.

40085901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40085901 - 2² = 40085897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1484663 = 40085901 / (4 + 0 + 0 + 8 + 5 + 9 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40085401) by changing a digit.

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, 742305 + ... + 742358.

It is an arithmetic number, because the mean of its divisors is an integer number (7423320).

Almost surely, 2^40085901 is an apocalyptic number.

It is an amenable number.

40085901 is a deficient number, since it is larger than the sum of its proper divisors (19300659).

40085901 is a wasteful number, since it uses less digits than its factorization.

40085901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484672 (or 1484666 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 40085901 is about 6331.3427485803. The cubic root of 40085901 is about 342.2398287021.

The spelling of 40085901 in words is "forty million, eighty-five thousand, nine hundred one".