40616669 has 2 divisors, whose sum is σ = 40616670. Its totient is φ = 40616668.

The previous prime is 40616659. The next prime is 40616683. The reversal of 40616669 is 96661604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 7496644 = 5755^2 + 2738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40616669 is a prime.

It is a super-2 number, since 2×40616669² = 3299427601311122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40616629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20308334 + 20308335.

It is an arithmetic number, because the mean of its divisors is an integer number (20308335).

Almost surely, 2^40616669 is an apocalyptic number.

It is an amenable number.

40616669 is a deficient number, since it is larger than the sum of its proper divisors (1).

40616669 is an equidigital number, since it uses as much as digits as its factorization.

40616669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 40616669 is about 6373.1208210735. The cubic root of 40616669 is about 343.7437162928.

The spelling of 40616669 in words is "forty million, six hundred sixteen thousand, six hundred sixty-nine".