1290344 has 48 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 554400.

The previous prime is 1290329. The next prime is 1290371. The reversal of 1290344 is 4430921.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29987 + ... + 30029.

It is an arithmetic number, because the mean of its divisors is an integer number (58520).

2^1290344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404480).

1290344 is an abundant number, since it is smaller than the sum of its proper divisors (1518616).

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

1290344 is a wasteful number, since it uses less digits than its factorization.

1290344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1290344 is about 1135.9330966215. The cubic root of 1290344 is about 108.8683988163.

It can be divided in two parts, 12 and 90344, that multiplied together give a triangular number (1084128 = T₁₄₇₂).

The spelling of 1290344 in words is "one million, two hundred ninety thousand, three hundred forty-four".