1288602 has 48 divisors (see below), whose sum is σ = 3337920. Its totient is φ = 367416.

The previous prime is 1288597. The next prime is 1288603. The reversal of 1288602 is 2068821.

It is a super-2 number, since 2×1288602² = 3320990228808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1288603) 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 23 ways as a sum of consecutive naturals, for example, 2403 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (69540).

2^1288602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1288602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668960).

1288602 is an abundant number, since it is smaller than the sum of its proper divisors (2049318).

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

1288602 is a wasteful number, since it uses less digits than its factorization.

1288602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1288602 is about 1135.1660671461. The cubic root of 1288602 is about 108.8193849723.

The spelling of 1288602 in words is "one million, two hundred eighty-eight thousand, six hundred two".