134222440 has 128 divisors (see below), whose sum is σ = 348105600. Its totient is φ = 46126080.

The previous prime is 134222437. The next prime is 134222443. The reversal of 134222440 is 44222431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (134222437) and next prime (134222443).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (134222443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854842 + ... + 854998.

It is an arithmetic number, because the mean of its divisors is an integer number (2719575).

Almost surely, 2^134222440 is an apocalyptic number.

134222440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174052800).

134222440 is an abundant number, since it is smaller than the sum of its proper divisors (213883160).

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

134222440 is a wasteful number, since it uses less digits than its factorization.

134222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 134222440 is about 11585.4408634285. The cubic root of 134222440 is about 512.0059915477.

Adding to 134222440 its reverse (44222431), we get a palindrome (178444871).

Subtracting from 134222440 its reverse (44222431), we obtain a palindrome (90000009).

The spelling of 134222440 in words is "one hundred thirty-four million, two hundred twenty-two thousand, four hundred forty".