40286005 has 8 divisors (see below), whose sum is σ = 51187032. Its totient is φ = 30332928.

The previous prime is 40285981. The next prime is 40286009. The reversal of 40286005 is 50068204.

It can be written as a sum of positive squares in 4 ways, for example, as 7761796 + 32524209 = 2786^2 + 5703^2 .

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 40286005 - 2⁷ = 40285877 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 (40286009) 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, 236892 + ... + 237061.

It is an arithmetic number, because the mean of its divisors is an integer number (6398379).

Almost surely, 2^40286005 is an apocalyptic number.

It is an amenable number.

40286005 is a deficient number, since it is larger than the sum of its proper divisors (10901027).

40286005 is a wasteful number, since it uses less digits than its factorization.

40286005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473975.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40286005 is about 6347.1257274455. The cubic root of 40286005 is about 342.8083571045.

The spelling of 40286005 in words is "forty million, two hundred eighty-six thousand, five".