1249884 has 48 divisors (see below), whose sum is σ = 3306240. Its totient is φ = 408240.

The previous prime is 1249873. The next prime is 1249901. The reversal of 1249884 is 4889421.

1249884 = 82² + 83² + ... + 162².

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7587 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^1249884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1249884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653120).

1249884 is an abundant number, since it is smaller than the sum of its proper divisors (2056356).

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

1249884 is a wasteful number, since it uses less digits than its factorization.

1249884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 239 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1249884 is about 1117.9821107692. The cubic root of 1249884 is about 107.7184022062.

The spelling of 1249884 in words is "one million, two hundred forty-nine thousand, eight hundred eighty-four".