22406137 has 8 divisors (see below), whose sum is σ = 24204096. Its totient is φ = 20618832.

The previous prime is 22406129. The next prime is 22406141. The reversal of 22406137 is 73160422.

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

It is not a de Polignac number, because 22406137 - 2³ = 22406129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22406107) 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, 2028 + ... + 6994.

It is an arithmetic number, because the mean of its divisors is an integer number (3025512).

Almost surely, 2^22406137 is an apocalyptic number.

It is an amenable number.

22406137 is a deficient number, since it is larger than the sum of its proper divisors (1797959).

22406137 is a wasteful number, since it uses less digits than its factorization.

22406137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22406137 is about 4733.5121210366. The cubic root of 22406137 is about 281.9176905464.

Adding to 22406137 its reverse (73160422), we get a palindrome (95566559).

The spelling of 22406137 in words is "twenty-two million, four hundred six thousand, one hundred thirty-seven".