240145650 has 72 divisors (see below), whose sum is σ = 657430020. Its totient is φ = 62824320.

The previous prime is 240145603. The next prime is 240145657. The reversal of 240145650 is 56541042.

240145650 is a `hidden beast` number, since 2 + 4 + 0 + 1 + 4 + 5 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 83119689 + 157025961 = 9117^2 + 12531^2 .

It is not an unprimeable number, because it can be changed into a prime (240145657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18816 + ... + 28884.

Almost surely, 2^240145650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240145650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328715010).

240145650 is an abundant number, since it is smaller than the sum of its proper divisors (417284370).

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

240145650 is a wasteful number, since it uses less digits than its factorization.

240145650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140 (or 10132 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 240145650 is about 15496.6335053779. The cubic root of 240145650 is about 621.5721892170.

Adding to 240145650 its reverse (56541042), we get a palindrome (296686692).

The spelling of 240145650 in words is "two hundred forty million, one hundred forty-five thousand, six hundred fifty".