40611969 has 8 divisors (see below), whose sum is σ = 60165920. Its totient is φ = 27074628.

The previous prime is 40611959. The next prime is 40611979. The reversal of 40611969 is 96911604.

It is an interprime number because it is at equal distance from previous prime (40611959) and next prime (40611979).

It is not a de Polignac number, because 40611969 - 2⁵ = 40611937 is a prime.

It is a super-3 number, since 3×40611969³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40611959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752047 + ... + 752100.

It is an arithmetic number, because the mean of its divisors is an integer number (7520740).

Almost surely, 2^40611969 is an apocalyptic number.

It is an amenable number.

40611969 is a deficient number, since it is larger than the sum of its proper divisors (19553951).

40611969 is a wasteful number, since it uses less digits than its factorization.

40611969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504156 (or 1504150 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 40611969 is about 6372.7520742612. The cubic root of 40611969 is about 343.7304568945.

The spelling of 40611969 in words is "forty million, six hundred eleven thousand, nine hundred sixty-nine".