40020404034 has 32 divisors (see below), whose sum is σ = 86206942080. Its totient is φ = 12312663552.

The previous prime is 40020404033. The next prime is 40020404051. The reversal of 40020404034 is 43040402004.

It is a super-3 number, since 3×40020404034³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40020404034.

It is not an unprimeable number, because it can be changed into a prime (40020404033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924114 + ... + 966450.

It is an arithmetic number, because the mean of its divisors is an integer number (2693966940).

Almost surely, 2^40020404034 is an apocalyptic number.

40020404034 is an abundant number, since it is smaller than the sum of its proper divisors (46186538046).

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

40020404034 is a wasteful number, since it uses less digits than its factorization.

40020404034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54474.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 40020404034 its reverse (43040402004), we get a palindrome (83060806038).

The spelling of 40020404034 in words is "forty billion, twenty million, four hundred four thousand, thirty-four".