1394391 has 16 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 828288.

The previous prime is 1394389. The next prime is 1394401. The reversal of 1394391 is 1934931.

It is not a de Polignac number, because 1394391 - 2¹ = 1394389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1394391 is an apocalyptic number.

1394391 is a deficient number, since it is larger than the sum of its proper divisors (679209).

1394391 is a wasteful number, since it uses less digits than its factorization.

1394391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its digits is 2916, while the sum is 30.

The square root of 1394391 is about 1180.8433427005. The cubic root of 1394391 is about 111.7192960004.

The spelling of 1394391 in words is "one million, three hundred ninety-four thousand, three hundred ninety-one".