134644220 has 24 divisors (see below), whose sum is σ = 283442208. Its totient is φ = 53726400.

The previous prime is 134644219. The next prime is 134644229. The reversal of 134644220 is 22446431.

It is a self number, because there is not a number n which added to its sum of digits gives 134644220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134644229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 16415.

It is an arithmetic number, because the mean of its divisors is an integer number (11810092).

Almost surely, 2^134644220 is an apocalyptic number.

134644220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134644220 is an abundant number, since it is smaller than the sum of its proper divisors (148797988).

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

134644220 is a wasteful number, since it uses less digits than its factorization.

134644220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16421 (or 16419 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 134644220 is about 11603.6296045677. The cubic root of 134644220 is about 512.5417392141.

The spelling of 134644220 in words is "one hundred thirty-four million, six hundred forty-four thousand, two hundred twenty".