1288194 has 16 divisors (see below), whose sum is σ = 2636832. Its totient is φ = 419328.

The previous prime is 1288193. The next prime is 1288201. The reversal of 1288194 is 4918821.

It is not an unprimeable number, because it can be changed into a prime (1288193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2239 + ... + 2754.

It is an arithmetic number, because the mean of its divisors is an integer number (164802).

2^1288194 is an apocalyptic number.

1288194 is an abundant number, since it is smaller than the sum of its proper divisors (1348638).

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

1288194 is a wasteful number, since it uses less digits than its factorization.

1288194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041.

The product of its digits is 4608, while the sum is 33.

The square root of 1288194 is about 1134.9863435302. The cubic root of 1288194 is about 108.8078988823.

The spelling of 1288194 in words is "one million, two hundred eighty-eight thousand, one hundred ninety-four".