1268190 has 128 divisors (see below), whose sum is σ = 4285440. Its totient is φ = 259200.

The previous prime is 1268177. The next prime is 1268207. The reversal of 1268190 is 918621.

It is a super-2 number, since 2×1268190² = 3216611752200, which contains 22 as substring.

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

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20760 + ... + 20820.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2^1268190 is an apocalyptic number.

1268190 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 1268190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142720).

1268190 is an abundant number, since it is smaller than the sum of its proper divisors (3017250).

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

1268190 is a wasteful number, since it uses less digits than its factorization.

1268190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1268190 is about 1126.1394229846. The cubic root of 1268190 is about 108.2417424413.

The spelling of 1268190 in words is "one million, two hundred sixty-eight thousand, one hundred ninety".