40696081 has 4 divisors (see below), whose sum is σ = 42838000. Its totient is φ = 38554164.

The previous prime is 40696069. The next prime is 40696093. The reversal of 40696081 is 18069604.

40696081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40696069) and next prime (40696093).

It is a cyclic number.

It is not a de Polignac number, because 40696081 - 2⁵ = 40696049 is a prime.

It is a super-2 number, since 2×40696081² = 3312342017517122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40666081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070931 + ... + 1070968.

It is an arithmetic number, because the mean of its divisors is an integer number (10709500).

Almost surely, 2^40696081 is an apocalyptic number.

It is an amenable number.

40696081 is a deficient number, since it is larger than the sum of its proper divisors (2141919).

40696081 is a wasteful number, since it uses less digits than its factorization.

40696081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141918.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40696081 is about 6379.3480074378. The cubic root of 40696081 is about 343.9675948608.

The spelling of 40696081 in words is "forty million, six hundred ninety-six thousand, eighty-one".