22143448 has 16 divisors (see below), whose sum is σ = 41574960. Its totient is φ = 11056800.

The previous prime is 22143421. The next prime is 22143449. The reversal of 22143448 is 84434122.

It is a happy number.

It is a super-3 number, since 3×22143448³ (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 (22143449) 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, 6813 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (2598435).

Almost surely, 2^22143448 is an apocalyptic number.

It is an amenable number.

22143448 is a deficient number, since it is larger than the sum of its proper divisors (19431512).

22143448 is a wasteful number, since it uses less digits than its factorization.

22143448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3734 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 22143448 is about 4705.6825222278. The cubic root of 22143448 is about 280.8116246950.

The spelling of 22143448 in words is "twenty-two million, one hundred forty-three thousand, four hundred forty-eight".