134044220 has 48 divisors (see below), whose sum is σ = 287884800. Its totient is φ = 52413504.

The previous prime is 134044219. The next prime is 134044223. The reversal of 134044220 is 22440431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 134044192 and 134044201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134044223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223481 + ... + 224079.

It is an arithmetic number, because the mean of its divisors is an integer number (5997600).

Almost surely, 2^134044220 is an apocalyptic number.

134044220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134044220 is an abundant number, since it is smaller than the sum of its proper divisors (153840580).

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

134044220 is a wasteful number, since it uses less digits than its factorization.

134044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 840 counting only the distinct ones).

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

The square root of 134044220 is about 11577.7467583291. The cubic root of 134044220 is about 511.7792780299.

Adding to 134044220 its reverse (22440431), we get a palindrome (156484651).

The spelling of 134044220 in words is "one hundred thirty-four million, forty-four thousand, two hundred twenty".