1120638 has 8 divisors (see below), whose sum is σ = 2241288. Its totient is φ = 373544.

The previous prime is 1120633. The next prime is 1120649. The reversal of 1120638 is 8360211.

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

1120638 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 93381 + ... + 93392.

It is an arithmetic number, because the mean of its divisors is an integer number (280161).

2^1120638 is an apocalyptic number.

1120638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120638 is a wasteful number, since it uses less digits than its factorization.

1120638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186778.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1120638 is about 1058.6019081789. The cubic root of 1120638 is about 103.8695974084.

Adding to 1120638 its reverse (8360211), we get a palindrome (9480849).

The spelling of 1120638 in words is "one million, one hundred twenty thousand, six hundred thirty-eight".