40656026 has 4 divisors (see below), whose sum is σ = 60984042. Its totient is φ = 20328012.

The previous prime is 40656023. The next prime is 40656043. The reversal of 40656026 is 62065604.

40656026 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.

It can be written as a sum of positive squares in only one way, i.e., 36012001 + 4644025 = 6001^2 + 2155^2 .

It is a super-2 number, since 2×40656026² = 3305824900225352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40656026.

It is not an unprimeable number, because it can be changed into a prime (40656023) 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 as a sum of consecutive naturals, namely, 10164005 + ... + 10164008.

Almost surely, 2^40656026 is an apocalyptic number.

40656026 is a deficient number, since it is larger than the sum of its proper divisors (20328016).

40656026 is a wasteful number, since it uses less digits than its factorization.

40656026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20328015.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40656026 is about 6376.2078071531. The cubic root of 40656026 is about 343.8547081131.

The spelling of 40656026 in words is "forty million, six hundred fifty-six thousand, twenty-six".