1288834 has 8 divisors (see below), whose sum is σ = 1974528. Its totient is φ = 630660.

The previous prime is 1288831. The next prime is 1288843. The reversal of 1288834 is 4388821.

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

It is a super-2 number, since 2×1288834² = 3322186159112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1288834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6762 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (246816).

2^1288834 is an apocalyptic number.

1288834 is a deficient number, since it is larger than the sum of its proper divisors (685694).

1288834 is a wasteful number, since it uses less digits than its factorization.

1288834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13760.

The product of its digits is 12288, while the sum is 34.

The square root of 1288834 is about 1135.2682502387. The cubic root of 1288834 is about 108.8259151971.

The spelling of 1288834 in words is "one million, two hundred eighty-eight thousand, eight hundred thirty-four".