22409450 has 48 divisors (see below), whose sum is σ = 48776640. Its totient is φ = 7499520.

The previous prime is 22409437. The next prime is 22409461. The reversal of 22409450 is 5490422.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14306 + ... + 15794.

It is an arithmetic number, because the mean of its divisors is an integer number (1016180).

Almost surely, 2^22409450 is an apocalyptic number.

22409450 is an abundant number, since it is smaller than the sum of its proper divisors (26367190).

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

22409450 is a wasteful number, since it uses less digits than its factorization.

22409450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22409450 is about 4733.8620596718. The cubic root of 22409450 is about 281.9315847647.

Adding to 22409450 its reverse (5490422), we get a palindrome (27899872).

The spelling of 22409450 in words is "twenty-two million, four hundred nine thousand, four hundred fifty".