1366290 has 96 divisors (see below), whose sum is σ = 4043520. Its totient is φ = 317952.

The previous prime is 1366289. The next prime is 1366291. The reversal of 1366290 is 926631.

It is a happy number.

1366290 is a `hidden beast` number, since 1 + 36 + 629 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1366289) and next prime (1366291).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29047 + ... + 29093.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2^1366290 is an apocalyptic number.

1366290 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 1366290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021760).

1366290 is an abundant number, since it is smaller than the sum of its proper divisors (2677230).

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

1366290 is a wasteful number, since it uses less digits than its factorization.

1366290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1366290 is about 1168.8840832178. The cubic root of 1366290 is about 110.9637086131.

The spelling of 1366290 in words is "one million, three hundred sixty-six thousand, two hundred ninety".