22423403 has 2 divisors, whose sum is σ = 22423404. Its totient is φ = 22423402.

The previous prime is 22423397. The next prime is 22423441. The reversal of 22423403 is 30432422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22423403 is a prime.

It is not a weakly prime, because it can be changed into another prime (22423463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211701 + 11211702.

It is an arithmetic number, because the mean of its divisors is an integer number (11211702).

Almost surely, 2^22423403 is an apocalyptic number.

22423403 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423403 is an equidigital number, since it uses as much as digits as its factorization.

22423403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22423403 is about 4735.3355741700. The cubic root of 22423403 is about 281.9900865016.

Adding to 22423403 its reverse (30432422), we get a palindrome (52855825).

The spelling of 22423403 in words is "twenty-two million, four hundred twenty-three thousand, four hundred three".