22440134 has 8 divisors (see below), whose sum is σ = 35123760. Its totient is φ = 10732216.

The previous prime is 22440133. The next prime is 22440137. The reversal of 22440134 is 43104422.

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

It is a super-2 number, since 2×22440134² = 1007119227875912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440133) 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, 243869 + ... + 243960.

It is an arithmetic number, because the mean of its divisors is an integer number (4390470).

Almost surely, 2^22440134 is an apocalyptic number.

22440134 is a deficient number, since it is larger than the sum of its proper divisors (12683626).

22440134 is a wasteful number, since it uses less digits than its factorization.

22440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487854.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22440134 is about 4737.1018566208. The cubic root of 22440134 is about 282.0602037685.

Adding to 22440134 its reverse (43104422), we get a palindrome (65544556).

The spelling of 22440134 in words is "twenty-two million, four hundred forty thousand, one hundred thirty-four".