1073865538 has 8 divisors (see below), whose sum is σ = 1680833088. Its totient is φ = 513587844.

The previous prime is 1073865523. The next prime is 1073865539. The reversal of 1073865538 is 8355683701.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 23344903 = 1073865538 / (1 + 0 + 7 + 3 + 8 + 6 + 5 + 5 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (1073865539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11672406 + ... + 11672497.

It is an arithmetic number, because the mean of its divisors is an integer number (210104136).

Almost surely, 2^1073865538 is an apocalyptic number.

1073865538 is a deficient number, since it is larger than the sum of its proper divisors (606967550).

1073865538 is a wasteful number, since it uses less digits than its factorization.

1073865538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344928.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 1073865538 is about 32769.8876714584. The cubic root of 1073865538 is about 1024.0393261111.

The spelling of 1073865538 in words is "one billion, seventy-three million, eight hundred sixty-five thousand, five hundred thirty-eight".