40140026 has 16 divisors (see below), whose sum is σ = 64388520. Its totient is φ = 18700800.

The previous prime is 40140019. The next prime is 40140047. The reversal of 40140026 is 62004104.

It can be written as a sum of positive squares in 4 ways, for example, as 34210801 + 5929225 = 5849^2 + 2435^2 .

It is a super-2 number, since 2×40140026² = 3222443374561352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 40139986 and 40140013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411 + ... + 9278.

Almost surely, 2^40140026 is an apocalyptic number.

40140026 is a deficient number, since it is larger than the sum of its proper divisors (24248494).

40140026 is a wasteful number, since it uses less digits than its factorization.

40140026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11809.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40140026 is about 6335.6156764753. The cubic root of 40140026 is about 342.3937930590.

The spelling of 40140026 in words is "forty million, one hundred forty thousand, twenty-six".