1249860 has 48 divisors (see below), whose sum is σ = 3600576. Its totient is φ = 323712.

The previous prime is 1249849. The next prime is 1249861. The reversal of 1249860 is 689421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1939 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (75012).

2^1249860 is an apocalyptic number.

1249860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1249860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1800288).

1249860 is an abundant number, since it is smaller than the sum of its proper divisors (2350716).

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

1249860 is a wasteful number, since it uses less digits than its factorization.

1249860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1249860 is about 1117.9713770933. The cubic root of 1249860 is about 107.7177127400.

The spelling of 1249860 in words is "one million, two hundred forty-nine thousand, eight hundred sixty".