134220444 has 12 divisors (see below), whose sum is σ = 313181064. Its totient is φ = 44740144.

The previous prime is 134220431. The next prime is 134220461. The reversal of 134220444 is 444022431.

It is a happy number.

134220444 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592507 + ... + 5592530.

It is an arithmetic number, because the mean of its divisors is an integer number (26098422).

Almost surely, 2^134220444 is an apocalyptic number.

It is an amenable number.

134220444 is an abundant number, since it is smaller than the sum of its proper divisors (178960620).

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

134220444 is a wasteful number, since it uses less digits than its factorization.

134220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11185044 (or 11185042 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 134220444 is about 11585.3547205081. The cubic root of 134220444 is about 512.0034535493.

Adding to 134220444 its reverse (444022431), we get a palindrome (578242875).

The spelling of 134220444 in words is "one hundred thirty-four million, two hundred twenty thousand, four hundred forty-four".