136090240 has 128 divisors (see below), whose sum is σ = 382475520. Its totient is φ = 45649920.

The previous prime is 136090237. The next prime is 136090247. The reversal of 136090240 is 42090631.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (136090247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90777 + ... + 92263.

It is an arithmetic number, because the mean of its divisors is an integer number (2988090).

Almost surely, 2^136090240 is an apocalyptic number.

136090240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136090240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191237760).

136090240 is an abundant number, since it is smaller than the sum of its proper divisors (246385280).

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

136090240 is a wasteful number, since it uses less digits than its factorization.

136090240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 136090240 is about 11665.7721561841. The cubic root of 136090240 is about 514.3700343814.

The spelling of 136090240 in words is "one hundred thirty-six million, ninety thousand, two hundred forty".