22143434 has 8 divisors (see below), whose sum is σ = 34659360. Its totient is φ = 10590316.

The previous prime is 22143421. The next prime is 22143449. The reversal of 22143434 is 43434122.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240644 + ... + 240735.

It is an arithmetic number, because the mean of its divisors is an integer number (4332420).

Almost surely, 2^22143434 is an apocalyptic number.

22143434 is a deficient number, since it is larger than the sum of its proper divisors (12515926).

22143434 is a wasteful number, since it uses less digits than its factorization.

22143434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481404.

The product of its digits is 2304, while the sum is 23.

The square root of 22143434 is about 4705.6810346644. The cubic root of 22143434 is about 280.8115655147.

Adding to 22143434 its reverse (43434122), we get a palindrome (65577556).

The spelling of 22143434 in words is "twenty-two million, one hundred forty-three thousand, four hundred thirty-four".