1111642 has 16 divisors (see below), whose sum is σ = 1919232. Its totient is φ = 473040.

The previous prime is 1111639. The next prime is 1111651. The reversal of 1111642 is 2461111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648 + ... + 3940.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2^1111642 is an apocalyptic number.

1111642 is a deficient number, since it is larger than the sum of its proper divisors (807590).

1111642 is a wasteful number, since it uses less digits than its factorization.

1111642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its digits is 48, while the sum is 16.

The square root of 1111642 is about 1054.3443460274. The cubic root of 1111642 is about 103.5909101907.

Adding to 1111642 its reverse (2461111), we get a palindrome (3572753).

The spelling of 1111642 in words is "one million, one hundred eleven thousand, six hundred forty-two".