40026405242 has 16 divisors (see below), whose sum is σ = 64200774312. Its totient is φ = 18649459200.

The previous prime is 40026405193. The next prime is 40026405311. The reversal of 40026405242 is 24250462004.

40026405242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36852096961 + 3174308281 = 191969^2 + 56341^2 .

It is a super-2 number, since 2×40026405242² (a number of 22 digits) contains 22 as substring.

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, 5824523 + ... + 5831390.

Almost surely, 2^40026405242 is an apocalyptic number.

40026405242 is a deficient number, since it is larger than the sum of its proper divisors (24174369070).

40026405242 is a wasteful number, since it uses less digits than its factorization.

40026405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11656033.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 40026405242 its reverse (24250462004), we get a palindrome (64276867246).

The spelling of 40026405242 in words is "forty billion, twenty-six million, four hundred five thousand, two hundred forty-two".