1263090 has 32 divisors (see below), whose sum is σ = 3079296. Its totient is φ = 331520.

The previous prime is 1263079. The next prime is 1263103. The reversal of 1263090 is 903621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (96228).

2^1263090 is an apocalyptic number.

1263090 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 1263090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539648).

1263090 is an abundant number, since it is smaller than the sum of its proper divisors (1816206).

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

1263090 is a wasteful number, since it uses less digits than its factorization.

1263090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1263090 is about 1123.8727685997. The cubic root of 1263090 is about 108.0964501900.

It can be divided in two parts, 12630 and 90, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 1263090 in words is "one million, two hundred sixty-three thousand, ninety".