1286190 has 48 divisors (see below), whose sum is σ = 3459456. Its totient is φ = 331200.

The previous prime is 1286189. The next prime is 1286191. The reversal of 1286190 is 916821.

It is an interprime number because it is at equal distance from previous prime (1286189) and next prime (1286191).

It is a super-2 number, since 2×1286190² = 3308569432200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2560 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2^1286190 is an apocalyptic number.

1286190 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 1286190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729728).

1286190 is an abundant number, since it is smaller than the sum of its proper divisors (2173266).

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

1286190 is a wasteful number, since it uses less digits than its factorization.

1286190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 502 counting only the distinct ones).

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

The square root of 1286190 is about 1134.1031699100. The cubic root of 1286190 is about 108.7514466712.

The spelling of 1286190 in words is "one million, two hundred eighty-six thousand, one hundred ninety".