22423450 has 24 divisors (see below), whose sum is σ = 47666592. Its totient is φ = 7687920.

The previous prime is 22423441. The next prime is 22423463. The reversal of 22423450 is 5432422.

22423450 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×22423450² = 1005622219805000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31684 + ... + 32383.

It is an arithmetic number, because the mean of its divisors is an integer number (1986108).

Almost surely, 2^22423450 is an apocalyptic number.

22423450 is an abundant number, since it is smaller than the sum of its proper divisors (25243142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22423450 is a wasteful number, since it uses less digits than its factorization.

22423450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64086 (or 64081 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22423450 is about 4735.3405368569. The cubic root of 22423450 is about 281.9902835208.

Adding to 22423450 its reverse (5432422), we get a palindrome (27855872).

The spelling of 22423450 in words is "twenty-two million, four hundred twenty-three thousand, four hundred fifty".