22044434 has 4 divisors (see below), whose sum is σ = 33066654. Its totient is φ = 11022216.

The previous prime is 22044433. The next prime is 22044439. The reversal of 22044434 is 43444022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43444022 = 2 ⋅21722011.

It can be written as a sum of positive squares in only one way, i.e., 21132409 + 912025 = 4597^2 + 955^2 .

It is not an unprimeable number, because it can be changed into a prime (22044433) 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 as a sum of consecutive naturals, namely, 5511107 + ... + 5511110.

Almost surely, 2^22044434 is an apocalyptic number.

22044434 is a deficient number, since it is larger than the sum of its proper divisors (11022220).

22044434 is a wasteful number, since it uses less digits than its factorization.

22044434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022219.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 22044434 is about 4695.1500508503. The cubic root of 22044434 is about 280.3924513791.

Adding to 22044434 its reverse (43444022), we get a palindrome (65488456).

The spelling of 22044434 in words is "twenty-two million, forty-four thousand, four hundred thirty-four".