40424444033 has 4 divisors (see below), whose sum is σ = 40453887828. Its totient is φ = 40395000240.

The previous prime is 40424444003. The next prime is 40424444089. The reversal of 40424444033 is 33044442404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37299969424 + 3124474609 = 193132^2 + 55897^2 .

It is a cyclic number.

It is not a de Polignac number, because 40424444033 - 2²⁶ = 40357335169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40424444003) 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, 14719838 + ... + 14722583.

It is an arithmetic number, because the mean of its divisors is an integer number (10113471957).

Almost surely, 2^40424444033 is an apocalyptic number.

It is an amenable number.

40424444033 is a deficient number, since it is larger than the sum of its proper divisors (29443795).

40424444033 is a wasteful number, since it uses less digits than its factorization.

40424444033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29443794.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 40424444033 its reverse (33044442404), we get a palindrome (73468886437).

The spelling of 40424444033 in words is "forty billion, four hundred twenty-four million, four hundred forty-four thousand, thirty-three".