1540332263 has 8 divisors (see below), whose sum is σ = 1550465280. Its totient is φ = 1530217440.

The previous prime is 1540332257. The next prime is 1540332281. The reversal of 1540332263 is 3622330451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1540332263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540332463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192833 + ... + 200661.

It is an arithmetic number, because the mean of its divisors is an integer number (193808160).

Almost surely, 2^1540332263 is an apocalyptic number.

1540332263 is a deficient number, since it is larger than the sum of its proper divisors (10133017).

1540332263 is a wasteful number, since it uses less digits than its factorization.

1540332263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 1540332263 is about 39247.0669349953. The cubic root of 1540332263 is about 1154.8833957109.

The spelling of 1540332263 in words is "one billion, five hundred forty million, three hundred thirty-two thousand, two hundred sixty-three".