22400466 has 32 divisors (see below), whose sum is σ = 50200128. Its totient is φ = 6603840.

The previous prime is 22400453. The next prime is 22400467. The reversal of 22400466 is 66400422.

It is not an unprimeable number, because it can be changed into a prime (22400467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 7028.

It is an arithmetic number, because the mean of its divisors is an integer number (1568754).

Almost surely, 2^22400466 is an apocalyptic number.

22400466 is an abundant number, since it is smaller than the sum of its proper divisors (27799662).

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

22400466 is a wasteful number, since it uses less digits than its factorization.

22400466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22400466 is about 4732.9130564590. The cubic root of 22400466 is about 281.8939040555.

Adding to 22400466 its reverse (66400422), we get a palindrome (88800888).

The spelling of 22400466 in words is "twenty-two million, four hundred thousand, four hundred sixty-six".