22307406 has 32 divisors (see below), whose sum is σ = 51235200. Its totient is φ = 6403680.

The previous prime is 22307393. The next prime is 22307407. The reversal of 22307406 is 60470322.

It is a super-3 number, since 3×22307406³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22307407) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7641 + ... + 10148.

It is an arithmetic number, because the mean of its divisors is an integer number (1601100).

Almost surely, 2^22307406 is an apocalyptic number.

22307406 is an abundant number, since it is smaller than the sum of its proper divisors (28927794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22307406 is a wasteful number, since it uses less digits than its factorization.

22307406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17824.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 22307406 is about 4723.0716700046. The cubic root of 22307406 is about 281.5029976324.

Adding to 22307406 its reverse (60470322), we get a palindrome (82777728).

The spelling of 22307406 in words is "twenty-two million, three hundred seven thousand, four hundred six".