40404020033 has 8 divisors (see below), whose sum is σ = 43960600488. Its totient is φ = 36911522304.

The previous prime is 40404020009. The next prime is 40404020057. The reversal of 40404020033 is 33002040404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40404020009) and next prime (40404020057).

It can be written as a sum of positive squares in 4 ways, for example, as 1203187969 + 39200832064 = 34687^2 + 197992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40404020033 - 2¹⁰ = 40404019009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40404019987 and 40404020014.

It is not an unprimeable number, because it can be changed into a prime (40404020093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16019366 + ... + 16021887.

It is an arithmetic number, because the mean of its divisors is an integer number (5495075061).

Almost surely, 2^40404020033 is an apocalyptic number.

It is an amenable number.

40404020033 is a deficient number, since it is larger than the sum of its proper divisors (3556580455).

40404020033 is a wasteful number, since it uses less digits than its factorization.

40404020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32041363.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 40404020033 its reverse (33002040404), we get a palindrome (73406060437).

The spelling of 40404020033 in words is "forty billion, four hundred four million, twenty thousand, thirty-three".