1288324 has 24 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 615264.

The previous prime is 1288307. The next prime is 1288337. The reversal of 1288324 is 4238821.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1288292 and 1288301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12457 + ... + 12559.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1288324 is an apocalyptic number.

It is an amenable number.

1288324 is a deficient number, since it is larger than the sum of its proper divisors (1070396).

1288324 is a wasteful number, since it uses less digits than its factorization.

1288324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 1288324 is about 1135.0436114969. The cubic root of 1288324 is about 108.8115589291.

The spelling of 1288324 in words is "one million, two hundred eighty-eight thousand, three hundred twenty-four".