1250816 has 40 divisors (see below), whose sum is σ = 2864400. Its totient is φ = 534528.

The previous prime is 1250813. The next prime is 1250831. The reversal of 1250816 is 6180521.

It is a junction number, because it is equal to n+sod(n) for n = 1250791 and 1250800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410 + ... + 3758.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2^1250816 is an apocalyptic number.

1250816 is a gapful number since it is divisible by the number (16) 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 1250816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432200).

1250816 is an abundant number, since it is smaller than the sum of its proper divisors (1613584).

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

1250816 is an frugal number, since it uses more digits than its factorization.

1250816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1250816 is about 1118.3988555073. The cubic root of 1250816 is about 107.7451696523.

The spelling of 1250816 in words is "one million, two hundred fifty thousand, eight hundred sixteen".