40404400033 has 4 divisors (see below), whose sum is σ = 41707767808. Its totient is φ = 39101032260.

The previous prime is 40404400009. The next prime is 40404400051. The reversal of 40404400033 is 33000440404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40404400033 - 2²¹ = 40402302881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40404399977 and 40404400013.

It is not an unprimeable number, because it can be changed into a prime (40404409033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651683841 + ... + 651683902.

It is an arithmetic number, because the mean of its divisors is an integer number (10426941952).

Almost surely, 2^40404400033 is an apocalyptic number.

It is an amenable number.

40404400033 is a deficient number, since it is larger than the sum of its proper divisors (1303367775).

40404400033 is a wasteful number, since it uses less digits than its factorization.

40404400033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303367774.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 40404400033 its reverse (33000440404), we get a palindrome (73404840437).

The spelling of 40404400033 in words is "forty billion, four hundred four million, four hundred thousand, thirty-three".