134224220 has 24 divisors (see below), whose sum is σ = 303553824. Its totient is φ = 49559616.

The previous prime is 134224213. The next prime is 134224229. The reversal of 134224220 is 22422431.

It is a super-2 number, since 2×134224220² = 36032282469216800, which contains 22 as substring.

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 = 134224192 and 134224201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134224229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257864 + ... + 258383.

It is an arithmetic number, because the mean of its divisors is an integer number (12648076).

Almost surely, 2^134224220 is an apocalyptic number.

134224220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134224220 is an abundant number, since it is smaller than the sum of its proper divisors (169329604).

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

134224220 is a wasteful number, since it uses less digits than its factorization.

134224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516269 (or 516267 counting only the distinct ones).

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

The square root of 134224220 is about 11585.5176837291. The cubic root of 134224220 is about 512.0082548718.

Adding to 134224220 its reverse (22422431), we get a palindrome (156646651).

The spelling of 134224220 in words is "one hundred thirty-four million, two hundred twenty-four thousand, two hundred twenty".