1099538 has 32 divisors (see below), whose sum is σ = 1959552. Its totient is φ = 457600.

The previous prime is 1099523. The next prime is 1099541. The reversal of 1099538 is 8359901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1099498 and 1099507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20720 + ... + 20772.

It is an arithmetic number, because the mean of its divisors is an integer number (61236).

2^1099538 is an apocalyptic number.

1099538 is a deficient number, since it is larger than the sum of its proper divisors (860014).

1099538 is a wasteful number, since it uses less digits than its factorization.

1099538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1099538 is about 1048.5885751809. The cubic root of 1099538 is about 103.2135576003.

The spelling of 1099538 in words is "one million, ninety-nine thousand, five hundred thirty-eight".