135440344 has 32 divisors (see below), whose sum is σ = 274680000. Its totient is φ = 62237952.

The previous prime is 135440329. The next prime is 135440351. The reversal of 135440344 is 443044531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22132 + ... + 27580.

It is an arithmetic number, because the mean of its divisors is an integer number (8583750).

Almost surely, 2^135440344 is an apocalyptic number.

It is an amenable number.

135440344 is an abundant number, since it is smaller than the sum of its proper divisors (139239656).

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

135440344 is a wasteful number, since it uses less digits than its factorization.

135440344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 135440344 is about 11637.8840001093. The cubic root of 135440344 is about 513.5499398839.

Adding to 135440344 its reverse (443044531), we get a palindrome (578484875).

The spelling of 135440344 in words is "one hundred thirty-five million, four hundred forty thousand, three hundred forty-four".