40106285 has 4 divisors (see below), whose sum is σ = 48127548. Its totient is φ = 32085024.

The previous prime is 40106263. The next prime is 40106291. The reversal of 40106285 is 58260104.

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 25260676 + 14845609 = 5026^2 + 3853^2 .

It is a cyclic number.

It is not a de Polignac number, because 40106285 - 2⁶ = 40106221 is a prime.

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, 4010624 + ... + 4010633.

It is an arithmetic number, because the mean of its divisors is an integer number (12031887).

Almost surely, 2^40106285 is an apocalyptic number.

It is an amenable number.

40106285 is a deficient number, since it is larger than the sum of its proper divisors (8021263).

40106285 is an equidigital number, since it uses as much as digits as its factorization.

40106285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021262.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 40106285 is about 6332.9523131001. The cubic root of 40106285 is about 342.2978294317.

Adding to 40106285 its reverse (58260104), we get a palindrome (98366389).

The spelling of 40106285 in words is "forty million, one hundred six thousand, two hundred eighty-five".