22404004445 has 16 divisors (see below), whose sum is σ = 27435007152. Its totient is φ = 17557463040.

The previous prime is 22404004397. The next prime is 22404004459. The reversal of 22404004445 is 54440040422.

It can be written as a sum of positive squares in 8 ways, for example, as 1067851684 + 21336152761 = 32678^2 + 146069^2 .

It is not a de Polignac number, because 22404004445 - 2¹⁸ = 22403742301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103919 + ... + 235811.

It is an arithmetic number, because the mean of its divisors is an integer number (1714687947).

Almost surely, 2^22404004445 is an apocalyptic number.

It is an amenable number.

22404004445 is a deficient number, since it is larger than the sum of its proper divisors (5031002707).

22404004445 is a wasteful number, since it uses less digits than its factorization.

22404004445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132592.

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 22404004445 its reverse (54440040422), we get a palindrome (76844044867).

The spelling of 22404004445 in words is "twenty-two billion, four hundred four million, four thousand, four hundred forty-five".