1290441 has 4 divisors (see below), whose sum is σ = 1720592. Its totient is φ = 860292.

The previous prime is 1290439. The next prime is 1290463. The reversal of 1290441 is 1440921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1290441 - 2¹ = 1290439 is a prime.

It is a D-number.

It is a Duffinian number.

1290441 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1290431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215071 + ... + 215076.

It is an arithmetic number, because the mean of its divisors is an integer number (430148).

2^1290441 is an apocalyptic number.

It is an amenable number.

1290441 is a deficient number, since it is larger than the sum of its proper divisors (430151).

1290441 is an equidigital number, since it uses as much as digits as its factorization.

1290441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430150.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1290441 is about 1135.9757919956. The cubic root of 1290441 is about 108.8711267633.

The spelling of 1290441 in words is "one million, two hundred ninety thousand, four hundred forty-one".