1253984 has 24 divisors (see below), whose sum is σ = 2494800. Its totient is φ = 620416.

The previous prime is 1253969. The next prime is 1253999. The reversal of 1253984 is 4893521.

It is an interprime number because it is at equal distance from previous prime (1253969) and next prime (1253999).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1253984.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4637 + ... + 4899.

It is an arithmetic number, because the mean of its divisors is an integer number (103950).

2^1253984 is an apocalyptic number.

It is an amenable number.

1253984 is a deficient number, since it is larger than the sum of its proper divisors (1240816).

1253984 is a wasteful number, since it uses less digits than its factorization.

1253984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 414 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 1253984 is about 1119.8142703145. The cubic root of 1253984 is about 107.8360567023.

The spelling of 1253984 in words is "one million, two hundred fifty-three thousand, nine hundred eighty-four".