40240321650 has 72 divisors (see below), whose sum is σ = 109944815760. Its totient is φ = 10548868320.

The previous prime is 40240321643. The next prime is 40240321687. The reversal of 40240321650 is 5612304204.

40240321650 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 0 + 3 + 2 + 1 + 650 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 731272 + ... + 784371.

It is an arithmetic number, because the mean of its divisors is an integer number (1527011330).

Almost surely, 2^40240321650 is an apocalyptic number.

40240321650 is an abundant number, since it is smaller than the sum of its proper divisors (69704494110).

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

40240321650 is a wasteful number, since it uses less digits than its factorization.

40240321650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515720 (or 1515712 counting only the distinct ones).

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

Adding to 40240321650 its reverse (5612304204), we get a palindrome (45852625854).

The spelling of 40240321650 in words is "forty billion, two hundred forty million, three hundred twenty-one thousand, six hundred fifty".