22372405 has 32 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 15163200.

The previous prime is 22372397. The next prime is 22372411. The reversal of 22372405 is 50427322.

It is not a de Polignac number, because 22372405 - 2³ = 22372397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22372405.

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 31 ways as a sum of consecutive naturals, for example, 82420 + ... + 82690.

It is an arithmetic number, because the mean of its divisors is an integer number (979200).

Almost surely, 2^22372405 is an apocalyptic number.

It is an amenable number.

22372405 is a deficient number, since it is larger than the sum of its proper divisors (8961995).

22372405 is a wasteful number, since it uses less digits than its factorization.

22372405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22372405 is about 4729.9476741292. The cubic root of 22372405 is about 281.7761456395.

Adding to 22372405 its reverse (50427322), we get a palindrome (72799727).

The spelling of 22372405 in words is "twenty-two million, three hundred seventy-two thousand, four hundred five".