1288622 has 8 divisors (see below), whose sum is σ = 1947456. Its totient is φ = 639472.

The previous prime is 1288613. The next prime is 1288643. The reversal of 1288622 is 2268821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2078 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (243432).

2^1288622 is an apocalyptic number.

1288622 is a deficient number, since it is larger than the sum of its proper divisors (658834).

1288622 is a wasteful number, since it uses less digits than its factorization.

1288622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842.

The product of its digits is 3072, while the sum is 29.

The square root of 1288622 is about 1135.1748763957. The cubic root of 1288622 is about 108.8199479536.

The spelling of 1288622 in words is "one million, two hundred eighty-eight thousand, six hundred twenty-two".