22354405 has 16 divisors (see below), whose sum is σ = 28579824. Its totient is φ = 16727040.

The previous prime is 22354373. The next prime is 22354417. The reversal of 22354405 is 50445322.

It can be written as a sum of positive squares in 8 ways, for example, as 57121 + 22297284 = 239^2 + 4722^2 .

It is not a de Polignac number, because 22354405 - 2⁵ = 22354373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22354405.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14659 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (1786239).

Almost surely, 2^22354405 is an apocalyptic number.

It is an amenable number.

22354405 is a deficient number, since it is larger than the sum of its proper divisors (6225419).

22354405 is a wasteful number, since it uses less digits than its factorization.

22354405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 22354405 is about 4728.0445217870. The cubic root of 22354405 is about 281.7005565157.

Adding to 22354405 its reverse (50445322), we get a palindrome (72799727).

The spelling of 22354405 in words is "twenty-two million, three hundred fifty-four thousand, four hundred five".