40286605 has 4 divisors (see below), whose sum is σ = 48343932. Its totient is φ = 32229280.

The previous prime is 40286581. The next prime is 40286633. The reversal of 40286605 is 50668204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16491721 + 23794884 = 4061^2 + 4878^2 .

It is not a de Polignac number, because 40286605 - 2⁵ = 40286573 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4028656 + ... + 4028665.

It is an arithmetic number, because the mean of its divisors is an integer number (12085983).

Almost surely, 2^40286605 is an apocalyptic number.

It is an amenable number.

40286605 is a deficient number, since it is larger than the sum of its proper divisors (8057327).

40286605 is an equidigital number, since it uses as much as digits as its factorization.

40286605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057326.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40286605 is about 6347.1729927583. The cubic root of 40286605 is about 342.8100589692.

The spelling of 40286605 in words is "forty million, two hundred eighty-six thousand, six hundred five".