1392441 has 8 divisors (see below), whose sum is σ = 1867680. Its totient is φ = 922752.

The previous prime is 1392431. The next prime is 1392449. The reversal of 1392441 is 1442931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1392441 - 2¹³ = 1384249 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1392449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (233460).

2^1392441 is an apocalyptic number.

It is an amenable number.

1392441 is a deficient number, since it is larger than the sum of its proper divisors (475239).

1392441 is a wasteful number, since it uses less digits than its factorization.

1392441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its digits is 864, while the sum is 24.

The square root of 1392441 is about 1180.0173727535. The cubic root of 1392441 is about 111.6671933838.

The spelling of 1392441 in words is "one million, three hundred ninety-two thousand, four hundred forty-one".