22154466 has 8 divisors (see below), whose sum is σ = 44308944. Its totient is φ = 7384820.

The previous prime is 22154459. The next prime is 22154467. The reversal of 22154466 is 66445122.

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

22154466 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22154467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846200 + ... + 1846211.

It is an arithmetic number, because the mean of its divisors is an integer number (5538618).

Almost surely, 2^22154466 is an apocalyptic number.

22154466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22154466 is a wasteful number, since it uses less digits than its factorization.

22154466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692416.

The product of its digits is 11520, while the sum is 30.

The square root of 22154466 is about 4706.8530888482. The cubic root of 22154466 is about 280.8581918098.

Adding to 22154466 its sum of digits (30), we get a triangular number (22154496 = T₆₆₅₆).

Adding to 22154466 its reverse (66445122), we get a palindrome (88599588).

The spelling of 22154466 in words is "twenty-two million, one hundred fifty-four thousand, four hundred sixty-six".