136450440 has 128 divisors (see below), whose sum is σ = 519840000. Its totient is φ = 31186944.

The previous prime is 136450429. The next prime is 136450441. The reversal of 136450440 is 44054631.

136450440 is a `hidden beast` number, since 13 + 645 + 0 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (136450441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (4061250).

Almost surely, 2^136450440 is an apocalyptic number.

136450440 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 136450440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259920000).

136450440 is an abundant number, since it is smaller than the sum of its proper divisors (383389560).

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

136450440 is a wasteful number, since it uses less digits than its factorization.

136450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076 (or 18066 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 136450440 is about 11681.2002807931. The cubic root of 136450440 is about 514.8234415350.

The spelling of 136450440 in words is "one hundred thirty-six million, four hundred fifty thousand, four hundred forty".