22372237 has 8 divisors (see below), whose sum is σ = 22854456. Its totient is φ = 21894912.

The previous prime is 22372219. The next prime is 22372241. The reversal of 22372237 is 73227322.

It can be written as a sum of positive squares in 4 ways, for example, as 7733961 + 14638276 = 2781^2 + 3826^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22372237 - 2⁷ = 22372109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22372267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8883 + ... + 11119.

It is an arithmetic number, because the mean of its divisors is an integer number (2856807).

Almost surely, 2^22372237 is an apocalyptic number.

It is an amenable number.

22372237 is a deficient number, since it is larger than the sum of its proper divisors (482219).

22372237 is a wasteful number, since it uses less digits than its factorization.

22372237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its digits is 7056, while the sum is 28.

The square root of 22372237 is about 4729.9299149142. The cubic root of 22372237 is about 281.7754403285.

Adding to 22372237 its reverse (73227322), we get a palindrome (95599559).

It can be divided in two parts, 2 and 2372237, that multiplied together give a palindrome (4744474).

The spelling of 22372237 in words is "twenty-two million, three hundred seventy-two thousand, two hundred thirty-seven".