40835669 has 12 divisors (see below), whose sum is σ = 47607084. Its totient is φ = 34925184.

The previous prime is 40835659. The next prime is 40835671. The reversal of 40835669 is 96653804.

It can be written as a sum of positive squares in 2 ways, for example, as 20133169 + 20702500 = 4487^2 + 4550^2 .

It is not a de Polignac number, because 40835669 - 2¹⁶ = 40770133 is a prime.

It is a super-2 number, since 2×40835669² = 3335103725355122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40835659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41309 + ... + 42285.

It is an arithmetic number, because the mean of its divisors is an integer number (3967257).

Almost surely, 2^40835669 is an apocalyptic number.

40835669 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40835669 is a deficient number, since it is larger than the sum of its proper divisors (6771415).

40835669 is an equidigital number, since it uses as much as digits as its factorization.

40835669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 40835669 is about 6390.2792583736. The cubic root of 40835669 is about 344.3604169371.

The spelling of 40835669 in words is "forty million, eight hundred thirty-five thousand, six hundred sixty-nine".