1118445 has 16 divisors (see below), whose sum is σ = 1804032. Its totient is φ = 591680.

The previous prime is 1118441. The next prime is 1118479. The reversal of 1118445 is 5448111.

It is not a de Polignac number, because 1118445 - 2² = 1118441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2^1118445 is an apocalyptic number.

1118445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1118445 is a deficient number, since it is larger than the sum of its proper divisors (685587).

1118445 is a wasteful number, since it uses less digits than its factorization.

1118445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its digits is 640, while the sum is 24.

The square root of 1118445 is about 1057.5656008021. The cubic root of 1118445 is about 103.8017982990.

The spelling of 1118445 in words is "one million, one hundred eighteen thousand, four hundred forty-five".