22421734 has 8 divisors (see below), whose sum is σ = 35094960. Its totient is φ = 10723416.

The previous prime is 22421699. The next prime is 22421747. The reversal of 22421734 is 43712422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22421699 and 22421708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243669 + ... + 243760.

It is an arithmetic number, because the mean of its divisors is an integer number (4386870).

Almost surely, 2^22421734 is an apocalyptic number.

22421734 is a deficient number, since it is larger than the sum of its proper divisors (12673226).

22421734 is a wasteful number, since it uses less digits than its factorization.

22421734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487454.

The product of its digits is 2688, while the sum is 25.

The square root of 22421734 is about 4735.1593426198. The cubic root of 22421734 is about 281.9830900445.

The spelling of 22421734 in words is "twenty-two million, four hundred twenty-one thousand, seven hundred thirty-four".