1268730 has 64 divisors (see below), whose sum is σ = 3502080. Its totient is φ = 326592.

The previous prime is 1268713. The next prime is 1268731. The reversal of 1268730 is 378621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1268694 and 1268703.

It is not an unprimeable number, because it can be changed into a prime (1268731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9927 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (54720).

2^1268730 is an apocalyptic number.

1268730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751040).

1268730 is an abundant number, since it is smaller than the sum of its proper divisors (2233350).

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

1268730 is a wasteful number, since it uses less digits than its factorization.

1268730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1268730 is about 1126.3791546367. The cubic root of 1268730 is about 108.2571035062.

The spelling of 1268730 in words is "one million, two hundred sixty-eight thousand, seven hundred thirty".