22440035 has 4 divisors (see below), whose sum is σ = 26928048. Its totient is φ = 17952024.

The previous prime is 22440031. The next prime is 22440037. The reversal of 22440035 is 53004422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53004422 = 2 ⋅26502211.

It is a cyclic number.

It is not a de Polignac number, because 22440035 - 2² = 22440031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22439989 and 22440016.

It is not an unprimeable number, because it can be changed into a prime (22440031) 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, 2243999 + ... + 2244008.

It is an arithmetic number, because the mean of its divisors is an integer number (6732012).

Almost surely, 2^22440035 is an apocalyptic number.

22440035 is a deficient number, since it is larger than the sum of its proper divisors (4488013).

22440035 is an equidigital number, since it uses as much as digits as its factorization.

22440035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488012.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22440035 is about 4737.0914071823. The cubic root of 22440035 is about 282.0597889760.

Adding to 22440035 its reverse (53004422), we get a palindrome (75444457).

The spelling of 22440035 in words is "twenty-two million, four hundred forty thousand, thirty-five".