1540450359 has 64 divisors (see below), whose sum is σ = 2793139200. Its totient is φ = 819016704.

The previous prime is 1540450349. The next prime is 1540450381. The reversal of 1540450359 is 9530540451.

1540450359 is a `hidden beast` number, since 154 + 0 + 450 + 3 + 59 = 666.

It is not a de Polignac number, because 1540450359 - 2⁴ = 1540450343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540450339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 283264 + ... + 288650.

It is an arithmetic number, because the mean of its divisors is an integer number (43642800).

Almost surely, 2^1540450359 is an apocalyptic number.

1540450359 is a deficient number, since it is larger than the sum of its proper divisors (1252688841).

1540450359 is a wasteful number, since it uses less digits than its factorization.

1540450359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1540450359 is about 39248.5714262316. The cubic root of 1540450359 is about 1154.9129096080.

The spelling of 1540450359 in words is "one billion, five hundred forty million, four hundred fifty thousand, three hundred fifty-nine".