134244243990 has 96 divisors (see below), whose sum is σ = 353408511456. Its totient is φ = 35350318080.

The previous prime is 134244243989. The next prime is 134244244061. The reversal of 134244243990 is 99342442431.

134244243990 is a `hidden beast` number, since 13 + 4 + 244 + 2 + 4 + 399 + 0 = 666.

It is a super-3 number, since 3×134244243990³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27614160 + ... + 27619020.

It is an arithmetic number, because the mean of its divisors is an integer number (3681338661).

Almost surely, 2^134244243990 is an apocalyptic number.

134244243990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 134244243990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176704255728).

134244243990 is an abundant number, since it is smaller than the sum of its proper divisors (219164267466).

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

134244243990 is a wasteful number, since it uses less digits than its factorization.

134244243990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654 (or 8651 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 134244243990 in words is "one hundred thirty-four billion, two hundred forty-four million, two hundred forty-three thousand, nine hundred ninety".