136843344 has 200 divisors, whose sum is σ = 448319520. Its totient is φ = 39916800.

The previous prime is 136843309. The next prime is 136843397. The reversal of 136843344 is 443348631.

It is a happy number.

It is a super-2 number, since 2×136843344² = 37452201594204672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 136843299 and 136843308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 413259 + ... + 413589.

Almost surely, 2^136843344 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 136843344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224159760).

136843344 is an abundant number, since it is smaller than the sum of its proper divisors (311476176).

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

136843344 is a wasteful number, since it uses less digits than its factorization.

136843344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 376 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 136843344 is about 11698.0059839273. The cubic root of 136843344 is about 515.3171063668.

The spelling of 136843344 in words is "one hundred thirty-six million, eight hundred forty-three thousand, three hundred forty-four".