40000026 has 32 divisors (see below), whose sum is σ = 87584256. Its totient is φ = 12078000.

The previous prime is 40000021. The next prime is 40000033. The reversal of 40000026 is 62000004.

It is a junction number, because it is equal to n+sod(n) for n = 39999966 and 40000020.

It is not an unprimeable number, because it can be changed into a prime (40000021) 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 15 ways as a sum of consecutive naturals, for example, 20931 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (2737008).

Almost surely, 2^40000026 is an apocalyptic number.

40000026 is an abundant number, since it is smaller than the sum of its proper divisors (47584230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40000026 is a wasteful number, since it uses less digits than its factorization.

40000026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40000026 is about 6324.5573758169. The cubic root of 40000026 is about 341.9952634343.

The spelling of 40000026 in words is "forty million, twenty-six", and thus it is an aban number and an uban number.