136768944 has 80 divisors (see below), whose sum is σ = 402911712. Its totient is φ = 39604224.

The previous prime is 136768943. The next prime is 136768963. The reversal of 136768944 is 449867631.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 136768893 and 136768902.

It is not an unprimeable number, because it can be changed into a prime (136768943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4162 + ... + 17054.

Almost surely, 2^136768944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136768944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201455856).

136768944 is an abundant number, since it is smaller than the sum of its proper divisors (266142768).

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

136768944 is a wasteful number, since it uses less digits than its factorization.

136768944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934 (or 12928 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 136768944 is about 11694.8255224266. The cubic root of 136768944 is about 515.2236989664.

The spelling of 136768944 in words is "one hundred thirty-six million, seven hundred sixty-eight thousand, nine hundred forty-four".