136443408 has 120 divisors (see below), whose sum is σ = 384573600. Its totient is φ = 41564160.

The previous prime is 136443407. The next prime is 136443421. The reversal of 136443408 is 804344631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136443403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1533028 + ... + 1533116.

It is an arithmetic number, because the mean of its divisors is an integer number (3204780).

Almost surely, 2^136443408 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 136443408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192286800).

136443408 is an abundant number, since it is smaller than the sum of its proper divisors (248130192).

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

136443408 is a wasteful number, since it uses less digits than its factorization.

136443408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 136443408 is about 11680.8992804493. The cubic root of 136443408 is about 514.8145975410.

The spelling of 136443408 in words is "one hundred thirty-six million, four hundred forty-three thousand, four hundred eight".