40335440633 has 4 divisors (see below), whose sum is σ = 40582897488. Its totient is φ = 40087983780.

The previous prime is 40335440599. The next prime is 40335440641. The reversal of 40335440633 is 33604453304.

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 40335440633 - 2²⁰ = 40334392057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40335440593 and 40335440602.

It is not an unprimeable number, because it can be changed into a prime (40335440833) 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, 123728183 + ... + 123728508.

It is an arithmetic number, because the mean of its divisors is an integer number (10145724372).

Almost surely, 2^40335440633 is an apocalyptic number.

It is an amenable number.

40335440633 is a deficient number, since it is larger than the sum of its proper divisors (247456855).

40335440633 is a wasteful number, since it uses less digits than its factorization.

40335440633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247456854.

The product of its (nonzero) digits is 155520, while the sum is 35.

Adding to 40335440633 its reverse (33604453304), we get a palindrome (73939893937).

The spelling of 40335440633 in words is "forty billion, three hundred thirty-five million, four hundred forty thousand, six hundred thirty-three".