40442333 has 4 divisors (see below), whose sum is σ = 40455360. Its totient is φ = 40429308.

The previous prime is 40442323. The next prime is 40442341. The reversal of 40442333 is 33324404.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40442333 - 2¹⁶ = 40376797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40442299 and 40442308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442323) 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, 1148 + ... + 9066.

It is an arithmetic number, because the mean of its divisors is an integer number (10113840).

Almost surely, 2^40442333 is an apocalyptic number.

It is an amenable number.

40442333 is a deficient number, since it is larger than the sum of its proper divisors (13027).

40442333 is an equidigital number, since it uses as much as digits as its factorization.

40442333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13026.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 40442333 is about 6359.4286693067. The cubic root of 40442333 is about 343.2512021682.

Adding to 40442333 its reverse (33324404), we get a palindrome (73766737).

The spelling of 40442333 in words is "forty million, four hundred forty-two thousand, three hundred thirty-three".